Motorcycle Bluetooth Helmet with Mesh Intercom User Guide
USER’S GUIDE

AOUT THE IMPULSE

1.1 Product Features

| Bluetooth® 5.0
---|---
| Mesh Intercom™ up to 2 km (1.2 mi)
| Intercom up to 2 km (1.2 mi)
| Audio Multitasking™
| • Multi-Language Voice Command
• Support Siri and Google Assistant
| Wi-Fi-Enabled for Automatic Firmware Updates

• in open terrain
  1.2 General Information

This product is a Motorcycle Flip-Up helmet.
Do not use it for any other purpose than riding a motorcycle. If you use the helmet for anything else, it may not provide sufficient protection in an accident. No helmet can protect the wearer against all possible impact scenarios.
For maximum protection, the helmet must fit properly on the head and its retention strap securely fastened under the chin. With the retention system comfortably but firmly adjusted, the helmet should allow sufficient peripheral vision when secured. If the helmet is too large, it may move on your head while riding. If the helmet can be removed when pulled from the back in an upward and forward direction, it’s not fitted properly. This could cause the helmet to obstruct your vision while riding or come off in an accident, resulting in personal injury or death. Please refer to Section 2: “Wearing the Helmet” for more details about properly securing and wearing your helmet.
The contents of this helmet User’s Guide are subjected to change without notice. Its illustration may differ from the actual product. The copyrights for the User’s Guide belong to Sena Technologies, Inc. Reproduction or copying of the User’s Guide without permission is strictly prohibited.
1.3 Product Details 1.4 Detachable Inner Parts 1.5 Package Contents

| |
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IMPULSE Helmet| Helmet Pouch| Boom Microphone Sponges (2)
| |
Reflex Stickers (4)*| USB Power & Data Cable (Magnetic USB-C)| Magnetic USB-C Adapter
| |
Dummy Cover Chin Curtains (2)| Pinlock® 120|

• Included only in Europe package
  1.6 Ventilation
  Head Ventilation: Chin Ventilation:

WEARING THE HELMET

2.1 Putting on the Helmet

1. Unfasten the chinstrap by using the retention system.
2. Expand the helmet opening with your hand, and slide your head into the helmet.
3. Fasten the chinstrap as tight as possible without causing you pain.

2.2 Removing the Helmet

1. Unfasten the chinstrap by using the retention system.
2. Gently pull the padded chinstrap outward and slide the helmet off your head.

Note: Fastening the chinstrap after removing the helmet will help avoid scratching surfaces it’s placed upon.
Quick-release retention system 2.3 Removing the Shield Visor

1. Open the shield visor to the fully opened position by pushing the tab located on the left side of the shield.
2. Pull the shield visor outward while pushing the shield ratchet lever downward.
3. Repeat Step 2 on the opposite side.

2.4 Installing the Shield Visor 2.5 Opening the Chin Guard Pull the chin guard lever downward, and lift the chin guard upward to the fully opened position.
2.6 Removing the Breath Guard Pull the breath guard away from the chin guard until it separates completely.
2.7 Installing the Breath Guard Insert the three tabs of the breath guard into the slots.
2.8 Removing the Cheek Pads

1. Pull the cheek pad to separate the three cheek pad tabs from the slots.
2. Unsnap the three cheek pad fasteners from the helmet.
3. Remove the cheek pad by pulling it upward.
4. Repeat the process on the opposite side.

2.9 Installing the Cheek Pads

![SENA Impulse Motorcycle Bluetooth Helmet with Mesh Intercom - fig

15](https://manuals.plus/wp-content/uploads/2023/07/SENA-Impulse-Motorcycle- Bluetooth-Helmet-with-Mesh-Intercom-fig-15.jpg)

1. Pass the chinstrap through the hole in the cheek pad, and snap the three cheek pad fasteners into place.
2. Insert the three cheek pad tabs into the slots.
3. Repeat the process on the opposite side.

2.10 Removing the Inner Pad

1. Unsnap the two inner pad rear fasteners.
2. Lift the pad upward and place your fingers under the plastic plate in the front section. Then, remove the plate by pulling it away from the front of the helmet.

2.11 Installing the Inner Pad

1. Align and install the plastic plate on the three sleeves of the front section.
2. Snap the two inner pad rear fasteners into place.

2.12 Removing the Inner Sun Visor

1. Slide the inner sun visor lever in the direction shown in the illustration above to lower the inner sun visor.
2. Pull one side of the visor in the direction shown in the illustration above.
3. Repeat Step 2 on the opposite side.

2.13 Installing the Inner Sun Visor

1. Insert the inner sun visor tab into its slot until you hear a click.
2. Repeat Step 1 on the opposite side.

2.14 Pre-Ride Helmet Inspection
WARNING: This product is a motorcycle helmet. Do not use it for any other purpose than riding a motorcycle. If you use the helmet for anything else, it may not provide sufficient protection in an accident. No helmet can protect the wearer against all possible impact scenarios.
2.14.1 Checking the Exterior
Check the helmet regularly for damage. Small, superficial scratches will not impair the helmet’s protective qualities. In the case of more serious damage (cracks, dents, flaking and cracking paint, etc.), the helmet should no longer be used.
2.14.2 Checking the Chinstrap

1. Ensure that the chinstrap is properly routed under your chin.
2. To test the chinstrap tension, slip your index finger under the chinstrap and pull. If the chinstrap is loose under the chin, it needs to be tightened. If the chinstrap loosens when you pull on it, the helmet is not properly fitted. Undo the chinstrap completely and try fastening it again, then repeat the test.
3. If you are unable to fasten the chinstrap so that it fits firmly against the chin, check that your helmet is still the right size for you.

Note: Repeat the test after each adjustment.
CAUTION: Never ride with the chinstrap unfastened or incorrectly adjusted. The chinstrap should fit correctly and should not become loose when pulled. The fastener is not correctly closed if the chinstrap becomes loose when pulled.
2.15 Checking the Shield Visor
Before every ride, clean the shield visor, check that if functions properly and that its surface is scratch- and crack-free. A malfunctioning, badly scratched or dirty shield will considerably impair your vision and should be replaced before riding.
CAUTION:

• A heavily scratched shield visor considerably interferes with visibility and should be replaced if necessary before riding.
• Stop riding if visibility is poor.

GETTING STARTED

3.1 Downloadable Sena Software
3.1.1 Sena Motorcycles App
By simply pairing your phone with your Bluetooth system, you can use the Sena Motorcycles App for quicker, easier set up and management.
Sena Motorcycles

• Wi-Fi-Enabled for Automatic Firmware Update
• Device Configuration Setting
• Download the Sena Motorcycles App on Google Play Store or App Store.

3.2 Charging
Charging the Bluetooth SystemDepending upon the charging method, the Bluetooth system will be fully charged in about 2.5 hours.
Note:

• Please make sure to take off your helmet while charging. The Bluetooth system automatically turns off during charging.
• Any 3rd party USB charger can be used with Sena products if the charger is approved by either the FCC, CE, IC, or other locally approved agencies.
• Use of a non-approved charger may cause fire, explosion, leakage, and other hazards which may also reduce the life time or performance of the battery.
• The Bluetooth system is compatible with 5 V input USB-charged devices only.

3.3 Legend

| Tap button the specified number of times
---|---
| Press and Hold button for the specified amount of time
| “Hello” Audible prompt

3.4 Powering On and Off
Powering On Powering Off 3.5 Checking the Battery Level
Instructions are for when powering the Bluetooth system on.
Powering On Note: When the battery is low while in use, you will hear a voice prompt saying “Low battery.”
3.6 Volume Adjustment
You can raise or lower the volume by tapping the (+) Button or the (-) Button. Volume is set and maintained independently at different levels for each audio source (i.e., phone, intercom), even when the Bluetooth system is rebooted.
Volume Up Volume Down

PRING THE BLUETOOTH SYSTEM WITH OTHER BLUETOOTH DEVICES

When using the Bluetooth system with other Bluetooth devices for the first time, they will need to be “paired.” This enables them to recognize and communicate with one another whenever they are within range.
The Bluetooth system can pair with multiple Bluetooth devices such as a mobile phone, GPS, MP3 player or Sena SR10 Two-Way Radio Adapter via Mobile Phone Pairing, Second Mobile Phone Pairing and GPS Pairing. The Bluetooth system can also be paired with up to three other Sena Bluetooth systems.
Pairs with up to Three Sena Bluetooth Systems Also Pairs with: 4.1 Phone Pairing
There are three ways to pair the phone.
4.1.1 Initially Pairing the IMPULSE
The Bluetooth system will automatically enter the phone pairing mode when you initially turn on the Bluetooth system or in the following situation:

• Rebooting after executing Factory Reset; or
• Rebooting after executing Delete All Pairings.

1. Press and hold the Center Button and the (+) Button for 1 second. 2. Select IMPULSE in the list of Bluetooth devices detected. If your mobile phone asks for a PIN, enter 0000.   Note:

• The phone pairing mode lasts for 3 minutes.
• To cancel phone pairing, tap the Center Button.

4.1.2 Pairing When the IMPULSE is Turned Off

1. While the Bluetooth system is off, press and hold the Center Button and the (+) Button until the LED flashes red and blue alternately and you hear a voice prompt, “Phone pairing.”
2. Select IMPULSE in the list of Bluetooth devices detected. If your mobile phone asks for a PIN, enter 0000.

4.1.3 Pairing When the IMPULSE is Turned On

1. While the Bluetooth system is on, press and hold the Center Button for 10 seconds.
   

2. Tap the (+) Button.

3. Select IMPULSE in the list of Bluetooth devices detected. If your mobile phone asks for a PIN, enter 0000.

4.2 Second Mobile Phone Pairing – Second Mobile Phone, GPS, and SR10

1. Press and hold the Center Button for 10 seconds.
   

2. Double tap the (+) Button.

3. Select IMPULSE in the list of Bluetooth devices detected. If your Bluetooth device asks for a PIN, enter 0000.

4.3 Advanced Selective Pairing: Hands-Free or A2DP Stereo
Phone Pairing allows the Bluetooth system to establish two Bluetooth profiles: Hands-Free or A2DP Stereo. Advanced Selective Pairing allows the Bluetooth system to separate the profiles to enable connection with two devices.
4.3.1 Phone Selective Pairing – Hands-Free Profile

1. Press and hold the Center Button for 10 seconds.
2. Tap the (+) Button 3 times.
3. Select IMPULSE in the list of Bluetooth devices detected. If your mobile phone asks for a PIN, enter 0000.

4.3.2 Media Selective Pairing – A2DP Profile

1. Press and hold the Center Button for 10 seconds.
2. Tap the (+) Button 4 times.
3. Select IMPULSE in the list of Bluetooth devices detected. If your mobile phone asks for a PIN, enter 0000.

4.4 GPS Pairing

1. Press and hold the Center Button for 10 seconds.
2. Tap the (+) Button 5 times.
3. Select IMPULSE in the list of devices detected. If your Bluetooth device asks for a PIN, enter 0000.

Note: If you pair your GPS device via GPS Pairing, its instruction will not interrupt your Mesh Intercom conversations, but overlay with them. Bluetooth intercom conversations will be interrupted by GPS instructions.

MOBILE PHONE USAGE

5.1 Making and Answering Calls Note: If you have a GPS device connected, you will not hear its voice navigations during a phone call.

5.2 Siri and Google Assistant
The IMPULSE supports the Siri and Google Assistant access directly.
You can activate the Siri or Google Assistant using the voice through the IMPULSE’s microphone, a wake word will be used. This is a word or a group of words such as “Hey Siri“ or “Hey Google.”
Activate the Siri or Google Assistant Installed on Your Smartphone 5.3 Speed Dialing
5.3.1 Assigning Speed Dial Presets
Speed Dial Presets could be assigned through the Sena Motorcycles App.
5.3.2 Using Speed Dial Presets

1. Enter into the Speed Dial menu.
2. Navigate forward or backward through Speed Dial Preset numbers.
3. Last number redial
4. Speed dial 1
5. Speed dial 2
6. Speed dial 3
7. Cancel
8. Call one of your Speed Dial Presets numbers.
9. Redial the last number called.

STEREO MUSIC

6.1 Bluetooth Stereo Music  6.2 Music Sharing
You can start sharing music with one intercom friend using Bluetooth stereo music during a two-way intercom conversation and one participant of a Mesh. If you start sharing music while Bluetooth intercom and Mesh Intercom are running at the same time, then music shared during Bluetooth intercom will take priority over music shared during Mesh Intercom.
Note:

• Both you and your intercom friend can remotely control music playback such as track forward and track back.
• Music sharing will be paused when you are using your mobile phone or listening to GPS instructions.
• Music sharing will be terminated if the Bluetooth system starts a multi-way intercom conference.

6.2.1 Bluetooth Intercom Music Sharing
You can start sharing the music with one intercom friend of a two-way intercom conversation.
Start/Terminate Sharing Music 6.2.2 Mesh Intercom Music Sharing
You can start sharing music with one participant of a Mesh Intercom.
1. The Creator will send a request message to participants connected during Mesh Intercom.2. The Creator will share music with the first participant that accepts the request.

MESH INTERCOM

7.1 What is Mesh Intercom?

Mesh Intercom™ is a dynamic communication system created by Sena that provides instant and effortless bike-to-bike communication without a pre-grouping process. Mesh Intercom allows riders to connect and communicate with nearby users without the need to pair each Bluetooth system together.
The working distance between each IMPULSE in Mesh Intercom can be up to 2 km (1.2 miles) in open terrain. In open terrain, the Mesh can be extended up to 8 km (5 miles) between a minimum of six users. Within the same channel in Open Mesh™ or the same private group in Group Mesh™, six users can talk at the same time and enjoy the optimal quality for their conversation.

7.1.1 Open Mesh
Open Mesh is an open group intercom function. Users can freely communicate with each other in the same Open Mesh channel and select which channel (1-9) to use through the Bluetooth system.
It can connect with a virtually unlimited number of users in each channel.
Open Mesh 7.1. 2 Group Mesh
Group Mesh is a closed group intercom function that allows users to join, leave, or rejoin a group intercom conversation without pairing each Bluetooth system. Users can freely communicate with each other in the same private group in Group Mesh.
For closed intercom conversations using Mesh Intercom, a Group Mesh needs to be created by the users. When users create a private group in Group Mesh by Mesh Grouping, the Bluetooth system automatically switches from Open Mesh to Group Mesh. Up to 24 users can all be connected in each private group.
Group Mesh ![SENA Impulse Motorcycle Bluetooth Helmet with Mesh Intercom

• Fig 7](https://manuals.plus/wp-content/uploads/2023/07/SENA-Impulse- Motorcycle-Bluetooth-Helmet-with-Mesh-Intercom-Fig-7-1.jpg)7. 2 Starting Mesh Intercom
  When Mesh Intercom is enabled, the IMPULSE will automatically connect to nearby IMPULSE users and allow them to talk to each other by pressing the Mesh Intercom Button. ![SENA Impulse Motorcycle Bluetooth Helmet with Mesh Intercom

• Fig 8](https://manuals.plus/wp-content/uploads/2023/07/SENA-Impulse- Motorcycle-Bluetooth-Helmet-with-Mesh-Intercom-Fig-8-1.jpg)7. 3 Using the Mesh in Open Mesh
  When Mesh Intercom is enabled, the Bluetooth system will be in Open Mesh (default: channel 1) initially.
  7. 3.1 Channel Setting (Default: channel 1)
  If the Open Mesh communication experiences interference because other groups are also using channel 1 (default), change the channel.
  You can select from channels 1 to 9.

  1. Double tap the Mesh Intercom Button.
  2. Navigate between channels.
  3. Save the channel.

Note:

• Channel Setting always starts with channel 1.
• If you do not press any button for approximately 10 seconds in a specific channel, the channel is automatically saved.
• The channel will be remembered even if you turn off the IMPULSE.
• You can use the Sena Motorcycles App to change the channel.

7.4 Using Mesh in Group Mesh
7.4.1 Creating a Group Mesh
Creating a Group Mesh requires two or more Open Mesh users.

1. To enter Mesh Grouping to create a Group Mesh, press and hold the Mesh Intercom Button for 5 seconds on the Bluetooth system of the users (You, B, and C).
2. When Mesh Grouping is completed, the users (You, B and C) will hear a voice prompt on their Bluetooth systems as Open Mesh switches to Group Mesh.

Note:

• If the Mesh Grouping is not completed within 30 seconds, users will hear a voice prompt, “Grouping failed.”
• If you want to cancel during the Mesh Grouping, tap the Mesh Intercom Button.

7.4. 2 Joining an Existing Group Mesh
One of the current users in an Existing Group Mesh can allow new users (one or more) in Open Mesh to join the Existing Group Mesh.

1. To enter Mesh Grouping to join the Existing Group Mesh, press and hold the Mesh Intercom Button for 5 seconds on the Bluetooth systems of one (You) of the current users in the Existing Group Mesh and the new users (D and F) in Open Mesh.
2. When Mesh Grouping is completed, the new users (D and F) will hear a voice prompt on their Bluetooth systems as Open Mesh switches to Group Mesh.

Note: If the Mesh Grouping is not completed within 30 seconds, the current user (You) will hear a low tone double beep and the new users (D and F) will hear a voice prompt, “Grouping failed.”

7. 5 Enable/Disable Mic (Default: Enable)
Users can enable/disable the microphone when communicating in a Mesh Intercom. 7.6 Toggling Open Mesh/Group Mesh
Users are able to toggle between Open Mesh and Group Mesh without resetting the Mesh. This allows users to keep the Group Mesh Network connection information while in Open Mesh.
Users can toggle to Group Mesh to communicate with participants from the stored Group Mesh Network connection information.
Toggle Between Open Mesh and Group Mesh Note: If you have never participated in Group Mesh, you cannot toggle between Open Mesh and Group Mesh. You will hear a voice prompt, “No group available.”

7.7 Mesh Reach-Out Request
You (caller) can send a request message to turn on the Mesh Intercom to nearby* friends who have it turned off.
1. If you want to send or receive a request message, you need to enable Mesh Reach-Out on the Sena Motorcycles App. Please refer to Section 15.2: “Software Configuration Setting.”
2. While your headset’s Mesh Intercom is on, you (caller) send a request message using the headset’s Button or the Sena Motorcycles App.3. Friends who receive the request message need to manually turn on their Mesh Intercom using the headset’s Button or the Sena Motorcycles App.

Note:

• *: Up to 100 m (109 yds) in open terrain
• To use the Mesh Reach-Out Request function, you (caller) who sends a request message and the friends who receive the request message must update the headset to the latest firmware version and the app to the latest version.

7.8 Reset Mesh
If a Bluetooth system in an Open Mesh or Group Mesh resets the Mesh, it will automatically return to Open Mesh (default: channel 1).

BLUETOOTH INTERCOM

Up to three other people can be paired with the Bluetooth system for Bluetooth intercom conversations. 8.1 Intercom Pairing
There are two ways to pair the Bluetooth system.
8.1.1 Using the Smart Intercom Pairing (SIP)SIP allows you to quickly pair with your friends for intercom communication by scanning the QR code on the Sena Motorcycles
App without remembering the button operation.

1. Pair the mobile phone with the Bluetooth system.

2. Open the Sena Motorcycles App and tap (Smart Intercom Pairing Menu).

3. Scan the QR code displayed on your friend (B)’s mobile phone.
   • Your friend (B) can display the > QR code on the mobile phone by tapping > QR code ( ) on the Sena Motorcycles App. ****

4. Tap Save and check that your friend (B) is paired with you (A) correctly.

5. Tap Scan ( ) and repeat steps 3-4 to pair with Intercom Friends (C) and (D).

Note: The Smart Intercom Pairing (SIP) is not compatible with Sena products that use Bluetooth 3.0 or below.
8.1.2 Using the Button

1. Users (You, B) enter into Intercom Pairing.
2. The two Bluetooth systems (A and B) will be automatically paired.
3. Repeat the steps above to pair with other Bluetooth systems (C and D).

8.2 Last-Come, First-Served
The intercom pairing queue is Last-Come, First-Served. If a Bluetooth system has multiple paired Bluetooth systems for intercom conversations, the last paired Bluetooth system is set as the First Intercom Friend. For example, after the pairing procedures listed
above, Bluetooth system (D) is the First Intercom Friend of Bluetooth system (A). Bluetooth system (C) is the Second Intercom Friend of Bluetooth system (A), and Bluetooth system (B) is the Third Intercom Friend of Bluetooth system (A). 8.3 Two-Way Intercom
You can start or end an intercom conversation with an Intercom Friend. Start/End Conversation with the First Intercom Friend D Start/End Conversation with the Second Intercom Friend C Start/End Conversation with the Third Intercom Friend B 8.4 Multi- Way Intercom
Multi-Way Intercom enables conference-call-style conversations with up to three Intercom Friends at the same time. While Multi-Way Intercom is in progress, the mobile phone connection is temporarily disconnected. However, as soon as Multi-Way Intercom terminates, the mobile phone connection will be reestablished.
8.4.1 Starting a Three-Way Intercom Conference
You (A) can have a Three-Way Intercom Conference with two other Intercom Friends (B and C) by establishing two intercom connections simultaneously.

1. You (A) need to be paired with two other Intercom Friends (B and C) for the Three-Way Intercom Conference.
2. Start an intercom conversation with the First Intercom Friend (C) by tapping the Center Button.
3. You (A) can call the Second Intercom Friend (B) by double tapping the Center Button, or the Second Intercom Friend (B) may join the intercom by making an intercom call to you (A).
4. Now you (A) and two Intercom Friends (B and C) are having a Three-Way Intercom Conference.

8.4.2 Starting a Four-Way Intercom Conference
With three Intercom Friends connected, a new participant (D) can make it a Four-Way Intercom Conference by making an intercom call to either (B) or (C).

1. Intercom friend (B) needs to be paired with a new participant (D).
   

2. Inter com friend (B) can call a new participant (D) by tapping the Center Button, or a new participant (D) may join the intercom by making an intercom call to Intercom friend (B).
   

3. Now you (A), two Intercom Friends (B and C), and a new participant (D) are having a Four-Way Intercom Conference.

8.4.3 Ending Multi-Way Intercom
You can completely terminate the conference intercom or just disconnect an intercom connection with one of your active Intercom Friends.
Terminate All Intercom Connections

• Press and hold the Center Button for 3 seconds.

Disconnect the Intercom Connection with One of the Intercom Friends

• Disconnect (C): Tap the Center Button.
• Disconnect (B) & (D): Double tap the Center Button.

Note: When you disconnect the second friend (B), you will be disconnected with the third participant (D) as well. This is because the third participant (D) is connected with you via the second friend (B).
8.5 Three-Way Conference Phone Call with Intercom Users
You can have a Three-Way Conference Phone Call by adding an Intercom Friend to the mobile phone conversation.

1. During a mobile phone call, tap the Center Button once, twice, or three times to invite one of your Intercom Friends to the conversation.
   Invite an Intercom Friend into Phone Conference

2. To disconnect the intercom during a conference phone call, tap the Center Button once, twice, or three times.
   Disconnect the Intercom Friend from Conference

3. To disconnect the mobile phone call during a conference phone call, press and hold the Center Button for 2 seconds.
   End Phone Call from Conference

Note: When you have an incoming intercom call during a mobile phone call, you will hear high tone double beeps.
8.6 Group Intercom
Group Intercom allows you to instantly create a Multi-Way Conference Intercom with three of the most recently paired Bluetooth systems.
To Start the Group Intercom
1. Go through intercom pairing with up to three Bluetooth systems you want to have Group Intercom with. When all of the Bluetooth systems are connected together.
Terminate Group Intercom 8.7 Mesh Intercom Conference with Bluetooth Intercom Participant

Users can use the existing Bluetooth intercom and Mesh Intercom function at the same time. In this case, it is recommended to communicate with other Sena Bluetooth systems via Bluetooth intercom connection and use Mesh Intercom between IMPULSE Bluetooth systems. A user who is in Open Mesh or Group Mesh when using Mesh Intercom is able to include up to 3 of their Bluetooth intercom friends. You can start a Two-Way Intercom conversation with one of your three Intercom Friends to include them in the Mesh.
Note:

• The audio quality will be reduced if a IMPULSE connects to 2 or more Bluetooth intercom friends while in Open Mesh or Group Mesh when using Mesh Intercom.
• If a closed loop is created, as shown below, each user will experience severe noise issues. Sena recommends that a closed loop not be created.
• If Bluetooth intercom is accidentally turned on during Mesh Intercom communication between IMPULSE Bluetooth systems, as shown below, you will hear a voice prompt, “Mesh intercom disabled. Bluetooth intercom connected” every 1 minute. If you
  turn off the Bluetooth Intercom or turn off the Mesh Intercom, the voice prompt will no longer come out.

UNIVERSAL INTERCOM

Universal Intercom allows you to have intercom conversations with users of non-Sena Bluetooth headsets. Non-Sena Bluetooth headset can be connected to the Sena Bluetooth system if they support the Bluetooth Hands-Free Profile (HFP). You can pair the Bluetooth system with only one non-Sena headset at a time. The intercom distance depends on the performance of the Bluetooth headset to which it’s connected. When a non-Sena Bluetooth headset is paired with the Bluetooth system while another Bluetooth device is paired via Second Mobile Phone Pairing, it will be disconnected.
9.1 Universal Intercom Pairing 4. Put the non-Sena Bluetooth headset in Hands-free Pairing Mode. The Bluetooth system will automatically pair with a non-Sena Bluetooth headset.
9.2 Two-Way Universal Intercom
You can initiate the Universal Intercom connection with non-Sena Bluetooth headsets using the same intercom connection method as you would between other Sena headsets.You may start/end a Two-Way Universal Intercom using the same way as you do in a normal Two-Way Intercom. Please refer to Section 8.3: “Two-Way Intercom.”
9.3 Multi-Way Universal Intercom
You can have Multi-Way Intercom communication with up to three Intercom Friends using non-Sena headsets. Some non-Sena headsets may not support Multi- Way Universal Intercom.
You may make the Multi-Way Universal Intercom call the same way as a normal four-way intercom call.
You may start/end a Multi-Way Universal Intercom using the same way as you do in a normal Multi-Way Intercom. Please refer to Section 8.4: “Multi-Way Intercom.”
9.3.1 Three-Way Universal Intercom
You may make a Three-Way Universal Intercom connection with two Bluetooth systems and one non-Sena Bluetooth headset. If the intercom connection is made, all headsets connected cannot use the mobile phone call function since the connection between the Bluetooth system and the phone is disconnected temporarily. If you disconnect the intercom call, the mobile phone connection is made again automatically so that you can use a mobile phone call function.

1. You (A) need to be paired with a non-Sena Bluetooth headset (B) and another headset (C) for the Three-Way Conference Intercom.
2. Start an intercom conversation with a non-Sena Bluetooth headset (B) in your intercom group. For example, you (A) may start an intercom conversation with non-Sena Bluetooth headset (B). The non-Sena Bluetooth headset (B) may also start an intercom call with you (A).
3. The other Bluetooth system (C) may join the intercom by making an intercom call to you (A).
4. Now you (A), non-Sena Bluetooth headset (B), and the other Bluetooth system (C) are having a Three-Way Conference Intercom.

9.3.2 Four-Way Universal Intercom

You may make the Four-Way Universal Intercom call the same way as a normal Four-Way Intercom call.
You may make a Four-Way Universal Intercom connection with a couple of different configurations,

1. two Bluetooth systems and two non-Sena Bluetooth headsets or
2. three Bluetooth systems and one non-Sena Bluetooth headset.

Four-Way Universal Intercom Case 1

1. You (A), a non-Sena Bluetooth headset (B), another Bluetooth system (C), and a non-Sena Bluetooth headset (D). Four-Way Universal Intercom Case 2
2. You (A), a non-Sena Bluetooth headset (B), and two other Bluetooth systems (C and D). 9.4 Mesh Intercom Conference with Two-way Universal Intercom Participant
   Users can use the existing Two-way Universal Intercom and Mesh Intercom function at the same time. In this case, it is recommended to communicate with non-Sena headset via Two-way Universal Intercom connection and use Mesh Intercom between IMPULSE Bluetooth systems.
   A user who is in Open Mesh or Group Mesh when using Mesh Intercom is able to include one Universal Intercom friend. You can start a Two-way Universal Intercom conversation with your Universal Intercom Friend to include it in the Mesh.

USING THE FM RADIO

10.1 FM Radio On/Off 10.2 Seek and Save Radio Stations
The “Seek” feature searches for radio stations.

1. Search for radio stations.
2. Save the current station.
3. Navigate through the preset numbers that you want to store.
4. Save the station in the preset number you choose or delete the station from memory.

10.3 Scan and Save Radio Stations

The “Scan” function automatically searches for radio stations, starting with the current station’s frequency, then up from there.

1. Scan for stations.
2. The Sena tuner pauses at each station it finds for 8 seconds before moving to the next.
3. Save the current station. The station will be saved as the next preset number.

Note: You can use the Sena Motorcycles App to save the preset stations.

10.4 Temporary Station Preset
The Temporary Preset feature automatically finds and saves the nearest 10 radio stations without changing your existing preset stations.

1. Automatically find and save 10 stations.
2. The temporary preset stations will be cleared when the Bluetooth system reboots.

10.5 Navigating Preset Stations
Using the methods above, up to 10 radio stations can be stored. You can navigate through the saved stations.
Navigate through Preset Stations

LED TAILLIGHT

You can control the LED Taillight through the Sena Motorcycles App.
• Mode : Solid / Night Flash / Day Flash / Off

VOICE COMMAND

The Voice Command of the Bluetooth system allows you to operate certain operations by simply using your voice. You can control the Bluetooth system completely hands-free using the voice recognition. Multi-language Voice Command supports English, French, German, Spanish, Italian, Chinese, Japanese, and Russian.
Speak a Voice Command List

Standby/
Bluetooth
Intercom/Mesh
Intercom/FM
Radio/Music| Check battery| Hey Sena, Check Battery
Volume Up| “Hey Sena, Volume Up”
Volume Down| “Hey Sena, Volume Down”
 Phone Pairing|  “Hey Sena, Phone Pairing”
Bluetooth Intercom Pairing| “Hey Sena, Pairing Intercom”
Start/End each  Bluetooth Intercom| “Hey Sena, Intercom  [One, Two, Three]”
Standby/ Bluetooth  Intercom/FM  Radio/Music| Turn on Mesh Intercom| “Hey Sena, Mesh On”
Mesh Intercom| Turn off Mesh Intercom| “Hey Sena, Mesh Off”
Mesh Grouping| “Hey Sena, Mesh Grouping”
Switch to Open Mesh| “Hey Sena, Open Mesh”
Switch to Group Mesh| “Hey Sena, Group Mesh”
End the Bluetooth intercom and Mesh intercom| “Hey Sena, End Intercom”
Standby/ Bluetooth Intercom/Mesh Intercom| Play Music| “Hey Sena, Play Music”
Standby/ Intercom/Mesh  Intercom/Music| Turn on FM radio| ”Hey Sena, FM Radio On”
Music/FM Radio| • FM – Next Preset
• Music – Next Track| “Hey Sena, Next”
• FM – Previous Preset
• Music – Previous Track| “Hey Sena, Previous”
Music| Pause Music| “Hey Sena, Stop Music”
FM Radio| Turn off FM Radio| “Hey Sena, FM Radio Off”
answer an Incoming call| “Answer”
Ignore an Incoming call| “Ignore”

Note:

• You can set a language to another language by using the Headset Language feature on the Sena Motorcycles App.
• If you set a language that does not support voice commands, the voice command will work only with English commands.
• You can see the another language’s voice command list on the Sena Motorcycles App.
• Voice command performance may vary based on the environmental conditions.

FUNCTION PRIORITY

The Bluetooth system operates in the following order of priority:
(highest)
Mobile phone
Mesh Intercom/Bluetooth Intercom
Music sharing via Bluetooth stereo music
FM radio
(lowest)
Bluetooth stereo music
A lower-priority function gets interrupted by a higher-priority function.
For example, stereo music will be interrupted by an Intercom Conversation; an Intercom Conversation will be interrupted by an incoming mobile phone call.

FIRMWARE UPGRADES

14.1 Wi-Fi-Enabled for Automatic Firmware Update
You can automatically install any available firmware updates to your Bluetooth system via a wireless network.
Built-in Wi-Fi in the Bluetooth System

• IEEE 802.11 b/g/n
• Working distance: Within 10 m

14.1.1 Connecting to the Bluetooth System
Firmware will be upgraded automatically when the Bluetooth system is charging. If you want to upgrade the firmware, you must first change the settings in the Sena Motorcycles App.

1. Connect the helmet to the USB charger (5 V/1 A), the Bluetooth system will power off automatically.
2. The built-in Wi-Fi automatically turns on and the red LED flashes quickly.

Note:

• Any 3rd party USB charger (5 V/1 A) can be used for firmware updates if the charger is approved by either the FCC, CE, or IC.
• Do not connect the Bluetooth system to a USB port on your PC to update the firmware.
• Do not disconnect the USB Cable while updating the firmware. Doing so may damage the product.
• Do not turn the Bluetooth system on while updating the firmware. Doing so may damage the product.

14.1.2 Connection Setup

1. Open the Sena Motorcycles App.
2. Tap the Menu button ( ) in the top-right corner of the screen and select Update via WiFi.
3. Follow the instructions on the Sena Motorcycles App to connect the built-in Wi-Fi to a Wi-Fi access point.

Note: To change the Wi-Fi access point, execute Wi-Fi Reset then repeat the steps above.
14.1.3 LED Description
Charging & Wi-Fi Status LED

| Charging & disconnected from a Wi-Fi access point
---|---
| Charging & searching for a Wi-Fi access point
| Charging & connected to a Wi-Fi access point
| Fully charged & disconnected from a Wi-Fi access point
| Fully charged & searching for a Wi-Fi access point
| Fully charged & connected to a Wi-Fi access point

Firmware Upgrade Status LED

Upgrading Firmware Firmware Upgrade Completed 14.1.4 W i-Fi Reset
The built-in Wi-Fi setting will be restored to the factory default settings, which include the Wi-Fi configuration setup, the firmware setup, and the language setup. ![SENA Impulse Motorcycle Bluetooth Helmet with Mesh Intercom

• Fig 67](https://manuals.plus/wp-content/uploads/2023/07/SENA-Impulse- Motorcycle-Bluetooth-Helmet-with-Mesh-Intercom-Fig-67.jpg)

CONFIGURATION SETTING

15.1 Bluetooth System Configuration Menu Bluetooth System Configuration Menu

15.1.1 Delete All Pairings
You can delete all Bluetooth pairing information of the Bluetooth system.
15.1.2 Remote Control Pairing
You can remotely control the Bluetooth system using Sena Remote
Control devices (sold separately).

1. Turn on the Bluetooth system and the Remote Control device.
2. Execute Remote Control Pairing.
3. Enter pairing mode in the Remote Control device. The Bluetooth system will automatically connect with the Remote Control device in pairing mode.

15.2 Software Configuration Setting
You can change the settings of the Bluetooth system through the Sena Motorcycles App.![SENA Impulse Motorcycle Bluetooth Helmet with Mesh Intercom

• Fig 69](https://manuals.plus/wp-content/uploads/2023/07/SENA-Impulse- Motorcycle-Bluetooth-Helmet-with-Mesh-Intercom-Fig-69.jpg) 15.2.1 Headset Language
  You can select the device language. The selected language is maintained even when the Bluetooth system is rebooted.
  15.2.2 Mesh Reach-Out (Default: Disable)
  When the Mesh Reach-Out is enabled, a Mesh Reach-Out request message can be sent or received. If the Mesh Reach-Out is disabled, a Mesh Reach-Out request message cannot be sent or received.
  15.2.3 Audio Equalizer (Default: Music Balance)
  Increase or decrease the decibel level of different frequency ranges of audio.

  • Music Balance will adjust frequency response that gives the most natural balance between lows, mids, and highs.
  • Music Enhanced will lower midrange frequencies slightly.
  • Voice will increase midrange frequencies of the human voice and cut environmental noise for better clarity with voice communication.
  • Bass Boost will increase the bass range of audio (130 Hz and below).
  • Treble Boost will increase the high range of audio (6 kHz and above).

15.2.4 Audio Boost (Default: Enable)
Audio Boost increases the overall maximum volume. If Audio Boost is enabled, Audio Equalizer will not be effective at the maximum volume and only work below the maximum volume. If Audio Boost is disabled, Audio Equalizer will work across all volume ranges.
15.2.5 VOX Phone (Default: Enable)
If this feature is enabled, you can answer incoming calls by voice. When you hear a ringtone for an incoming call, you can answer the phone by saying a word such as “Hello” loudly or by blowing air into the microphone. VOX Phone is temporarily disabled if you are connected to intercom. If this feature is disabled, you have to tap the Center Button to answer an incoming call.
15.2.6 VOX Intercom (Default: Disable)
If this feature is enabled, you can initiate an intercom conversation with the last connected intercom friend by voice. When you want to start intercom, say a word such as “Hello” loudly or blow air into the microphone. If you start an intercom conversation by voice, the intercom terminates automatically when you and your intercom friend remain silent for 20 seconds. However, if you manually start an intercom conversation by tapping the Center Button, you have to terminate the intercom conversation manually. However, if you start the intercom by voice and end it manually by tapping the Center Button, you will not be able to start intercom by voice temporarily. In this case, you have to tap the Center Button to restart the intercom. This is to prevent repeated unintentional intercom connections by strong wind noise. After  rebooting the Bluetooth system, you can start intercom by voice again.
15.2.7 VOX Sensitivity (Default: 3)
VOX Sensitivity can be adjusted depending on your riding environment. Level 5 is the highest sensitivity setting and level 1 is the lowest.
15.2.8 HD Intercom (Default: Enable)
HD Intercom enhances the two-way intercom audio from normal quality to HD quality. HD Intercom will become temporarily disabled when you enter into a multi-way intercom. If this feature is disabled, the two-way intercom audio will change to normal quality.
Note:

• The intercom distance of HD Intercom is relatively shorter than that of normal intercom.
• HD Intercom will become disabled temporarily when Bluetooth Intercom Audio Multitasking is enabled.

15.2.9 HD Voice (Default: Enable)
HD Voice allows you to communicate in high-definition during phone calls. This feature increases the quality so that the audio will be crisp and clear during phone call conversations. If this feature is enabled, incoming phone calls will interrupt intercom conversations and audio from the SR10 will not be heard during intercom conversations. ThreeWay Conference Phone Call with Intercom  Participant will not be available if HD Voice is enabled.
Note:

• Refer to the manufacturer of your Bluetooth device that will be connected to the Bluetooth system to see if it supports HD Voice.
• HD Voice is active only when Bluetooth Intercom Audio Multitasking is disabled.

15.2.10 Bluetooth Intercom Audio Multitasking (Default: Disabled)
Audio Multitasking (Bluetooth Intercom Audio Multitasking and Mesh Intercom Audio Multitasking) allows you to have an intercom conversation while simultaneously listening to music, FM radio, or GPS instructions. The overlaid audio is played in the background with reduced volume whenever there is an intercom conversation and will return to normal volume once the conversation is finished. The Mesh Intercom Audio Multitasking feature is always on.
Note:

• For Bluetooth Intercom Audio Multitasking to work properly, you need to power the Bluetooth system off and on. Please restart the Bluetooth system.
• Bluetooth Intercom Audio Multitasking will be activated during two-way intercom conversations with a Bluetooth system that also supports this feature.
• Some GPS devices may not support this feature.
• The Audio Multitasking feature can be configured through the Intercom-Audio Overlay Sensitivity and the Audio Overlay Volume Management settings.

15.2.11 Intercom-Audio Overlay Sensitivity (Default: 3)
The music, FM radio and GPS volume will be lowered to play in the background if you talk over the intercom while the overlaid audio is playing. You can adjust the intercom sensitivity to activate this background audio mode. Level 1 has the lowest sensitivity and level 5 has the highest sensitivity.
Note: If your voice is not louder than the sensitivity of the selected level, the overlaid audio will not be lowered.
15.2.12 Audio Overlay Volume Management (Default: Disable )
The music, FM radio and GPS overlaid audio reduces in volume whenever there is an ongoing intercom conversation. If Audio Overlay Volume Management is enabled, the volume level of the overlaid audio will not be reduced during an intercom conversation.
15.2.13 Smart Volume Control (Default: Disable)
Enabling Smart Volume Control automatically changes the level of the speaker volume based on the level of the environment noise. You can enable it by setting the sensitivity to low, medium or high.
15.2.14 Sidetone (Default: Disable)
Sidetone is audible feedback of your own voice. It helps you to naturally speak at the correct level according to varying helmet noise conditions. If this feature is enabled, you can hear what you are speaking during an intercom conversation or a phone call.
15.2.15 Voice Assistant (Default: Enable)
If Voice Assistant is enabled, you can wake up Siri or Google Assistant using a voice command, such as “Hey Siri” or “Hey Google.” If you do not want to wake up Siri or Google Assistant with your voice, disable this feature.
15.2.16 Voice Prompt (Default: Enable )
You can disable Voice Prompts by software configuration settings, but the following voice prompts are always on.
– Bluetooth system configuration settings menu, battery level indicator, speed dial, FM radio functions
15.2.17 RDS AF Setting (Default: Disable)
Radio Data System (RDS) Alternative Frequency (AF) Setting allows a receiver to re-tune to the second frequency location when the first signal becomes too weak. With RDS AF enabled on the receiver, a radio station with more than one frequency can be used.
15.2.18 FM Station Guide (Default: Enable )
When FM Station Guide is enabled, FM station frequencies are given by voice prompts as you select preset stations. When FM Station Guide is disabled, the voice prompts on FM station frequencies will not be given as you select preset stations.
15.2.19 Advanced Noise Control™ (Default: Enable)
When Advanced Noise Control is enabled, the background noise is reduced during an intercom conversation. When it is disabled, the background noise is mixed with your voice during intercom.
15.2.20 Region Selection
You can select the proper FM frequency range for your location. Using the region setting, you can optimize the seek function to avoid unnecessary frequency ranges.

TROUBLESHOOTING

Please visit sena.com for more troubleshooting information.
• Customer Support: sena.com
16.1 Fault Reset
When the Bluetooth system is not working properly, you can easily reset the unit:

1. Locate the Pinhole Fault Reset Button above the Magnetic DC Power Charging Port.
2. Gently insert a paper clip into the hole and press the Pinhole Fault Reset Button with light pressure.
3. The Bluetooth system will shut down.

Note: Fault Reset will not restore the Bluetooth system to factory default settings.
16.2 Factory Reset
To erase all of your settings and start fresh, the Bluetooth system can be restored to factory default settings using the Factory Reset feature. 

MAINTENANCE AND CARE

17.1 Outer Shell
Use a soft cloth and a small amount of water to remove bugs from the exterior.
Note: Never use gasoline, diesel fuel, thinners or solvents to clean the helmet. These substances can cause serious damage to the helmet, even though the resulting damage may not be visible. The full safety function of the helmet can then no longer be guaranteed.
17. 2 Inner Lining
The inner lining of the helmet is completely removable. Its headliner can be washed by hand using mild soap at a maximum temperature of 30°C (86°F). Allow the lining to dry at room temperature.
17. 3 Storing the Helmet
Store the helmet in a dry, dark, well-ventilated location, out of the reach of children and animals. Always position the helmet so that it cannot fall to the floor. Damage that occurs in this way is not covered by the warranty.

Copyright © 2023 Sena Technologies, Inc.
All rights reserved.

© 1998–2023 Sena Technologies, Inc. All rights reserved.
Sena Technologies, Inc. reserves the right to make any changes and improvements to its product without providing prior notice.
Sena™ is a trademark of Sena Technologies, Inc. or its subsidiaries in the USA and other countries. SF1™, SF2™, SF4™, SFR™, SRL™, SRL2™, SRL3™, SRL-EXT™, SRL-Mesh™, Momentum™, Momentum INC™, Momentum Lite™, Momentum Pro™, Momentum INC Pro™, Momentum EVO™, Cavalry™, Latitude SR™, Latitude SX™, Latitude S1™, 30K™, 33i™, 50S™, 50R™, 50C™, 5S™, 5R™, 5R LITE™, 20S EVO™, 20S™, 10S™, 10C™, 10C PRO™, ProRide EVO™, 10C EVO™, 10U™, 10Upad™, 10R™, ACS10™, ACS-RAM™, C1™, C10™, CAST™, 3S™, 3S PLUS™, SMH5™, SMH5-FM™, SMH5 MultiCom™, SMH10™, SMH10R™, SPH10™, SPH10H-FM™, Savage™, Prism Tube WiFi™, Prism™, Bluetooth Audio Pack for GoPro® , IMPULSE™, FURY™, R1™, R1 EVO™, R1 EVO CS™, R2™, R2 EVO™, R2X™, M1™, M1 EVO™, RUMBA™, RC1™, RC3™, RC4™, STRYKER™, Handlebar Remote™, Wristband Remote™, PowerPro Mount™, Powerbank™, FreeWire™, WiFi Docking Station™, WiFi Sync Cable™, WiFi Adapter™, +mesh™, +Mesh Universal™, MeshPort Blue™, MeshPort Red™, MeshPort Black™, Econo™, OUTLANDER M™, OUTRUSH™, OUTRUSH R™, OUTSTAR™, OUTSTAR S™, OUTFORCE™, OUTRIDE™, OUTRUSH M™, EcoCom™, Parani A10™, Parani A20™, Parani M10™, pi™, Snowtalk™, Snowtalk2™, SR10™, SR10i™, SM10™, SPIDER RT1™, SPIDER ST1™, X1™, X1 Pro™, X1S™, EXPAND™, EXPAND BOOM™, EXPAND MESH™, Bluetooth Mic & Intercom™, Tufftalk™, Tufftalk Lite™, Tufftalk M™, NAUTITALK Bosun™, NAUTITALK N2R™ are trademarks of Sena Technologies, Inc. or its subsidiaries. These trademarks may not be used without the express permission of Sena.
GoPro® is a registered trademark of Woodman Labs of San Mateo, California. Sena Technologies, Inc. (“Sena”) is not affiliated with Woodman Labs, Inc. The Sena Bluetooth Pack for GoPro® is an aftermarket accessory specially designed and manufactured by Sena Technologies, Inc. for the GoPro ® Hero3 and Hero4 allowing for Bluetooth capabilities. The Bluetooth® word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Sena is under license. iPhone® and iPod ® touch are registered trademarks of Apple Inc.
Address: 152 Technology Drive Irvine, CA 92618

IMPULSE Motorcycle Bluetooth
Helmet with Mesh Intercom™

Documents / Resources

| SENA Impulse Motorcycle Bluetooth Helmet with Mesh Intercom [pdf] User Guide
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---|---
| SENA Impulse Motorcycle Bluetooth Helmet with Mesh Intercom [pdf] User Guide
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References

• SENA
• SENA

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