Srhythm NC75Pro Noise Cancelling Headphones User Manual

Srhythm NC75Pro Noise Cancelling Headphones

Product Information

The NiceComfort75Pro (NC75Pro) is a pair of headphones that provide a comfortable and immersive audio experience. These headphones come with active noise cancellation (ANC) technology, allowing you to enjoy your music without any distractions from the surrounding environment. The headphones also feature Bluetooth connectivity, allowing you to wirelessly connect to your mobiledevices and enjoy your favorite music or take calls on the go. The NC75Pro headphones are equipped with a microphone, volume controlbuttons, and a multi-function button for easy control. The headphones come with a portable carry case, a 3.5mm to 6.35mm piano adaptor, an airplane adaptor (for use during flights), a quick start guide, a micro USB charging cable, and an audio cable.

Product Usage Instructions

Safety Instructions

• Headphones cannot be used during charging for your safety.
• Do not use the headphones for any other purpose while driving.
• Please use cautiously and stop using the headphone in dangerous situations.
• Avoid listening for a long time at high volume to prevent hearing damage.
• For your safety, do not turn the volume too high while running outside to ensure that you can hear sound in your surroundings.
• Clean the headphones only with a dry cloth.

Operation Safety

• Use original or certified cables for charging and ensure the voltage is within the range of 6.3V to 36V. The headphones will enter protection mode or may be damaged if the voltage exceeds 36V.
• Keep away from children to avoid danger from improper use.
• Do not charge or turn on the headphones in extreme temperatures.
• Please use the headphones within the recommended temperature range.
• Do not submerge the headphones in water.
• Do not use corrosive cleaner/oil to clean the headphones.
• Turn off the headphone Bluetooth and ANC function to save power when not in use.

How to Use
Use ANC Function:

1. Press the ANC Button to turn Active Noise Cancellation ON/OFF (the ANC indicator light will be green when ANC is ON).

Use Bluetooth Function

1. Hold the Multi-function Button for 3-5 seconds to turn the headphone Bluetooth on, then enter pairing mode (the LED indicator light will be blue and red flashing quickly).
2. Start your mobile phone Bluetooth and find the headphone Bluetooth pairing name “Srhythm 35S NC75Pro” and click to pair (the LED indicator light will be blue flashing slowly after paired successfully).
3. Hold the Multi-function Button for 3-5 seconds to turn the headphone Bluetooth off.

Function Details

• To adjust volume: Press to adjust volume. Long press to skip to the next/previous song.
• To clear pairing: Long press the Volume Up and Volume Down buttons for 5 seconds, or hold the Multi-function and Volume Down Buttons for 5 seconds. To play/pause music or answer/end call: Press the Multi-function Button.
• To reject an incoming call or dial out the last call: Double press the Multi-function Button.

Easy Pairing

1. Hold the Multi-function Button for 3-5 seconds to turn the headphone Bluetooth on, then enter pairing mode (the LED indicator light will be blue and red flashing quickly).
2. Keep the headphone and your mobile phone as close as possible during the pairing process.
3. Turn on your mobile phone Bluetooth. Search for the headphone Bluetooth signal on your mobile phone and click “Srhythm NC75Pro” to pair (the LED indicator light will be blue flashing slowly after pairing successfully).
4. If you are asked for a password/PIN code during the pairing procedure, please enter 0000 (four zeros).

Pair to the Second Bluetooth Device

1. Make sure that the headphone is connected to the first Bluetooth device successfully and music is not playing.
2. Hold the Multi-function button until the headphone switches off and continue with the steps for Easy Pairing (let the headphone re-enter pairing mode, the LED indicator light will flash blue and red alternately).
3. Pair the headphone with the second device according to the Easy Pairing steps.
4. Return to the first Bluetooth device and pair it with the headphone again. Now both of your devices are paired with the headphone.

Safety instructions

Hearing safety꞉

1. Headphones can’t be used during charging for your safety.
2. DON’T use the headphones for any other purpose while driving.
3. Please use cautiously and stop using headphone in dangerous situation.
4. Please do not listen for a long time at high volume to avoid hearing damage.
5. For your safety,please do not turn the volume too high while running outside to ensure that you can hear sound in your surroundings.
6. Clean only with a dry cloth.

Operation Safety

1. Use original or certified cables for charging and voltage within 6.3V.Power will be cut off and start protection mode when the voltage exceed 6.3V and within 36V.Headphone will be broken when the voltage over 36V.
2. Keep away from children to avoid danger from improper use.
3. Headphones can’t be charged or turned on in the extreme temperature. Please use headphones within the operating temperature range꞉ 32°F (0°C) – 113°F (45°C)
4. Do not submerge headphone in the water.
5. Do not use corrosive cleaner/oil to clean headphone
6. Turn off headphone Bluetooth and ANC function to save power when you do not use headphone.

What’s in the Box

At a Glance

How to Use

Use ANC Function

• Press the ANC Button to turn Active Noise Cancellation ON/OFF (the LED indicator light will be green when ANC ON.)

Use Bluetooth Function

• Hold the Multi-function Button for 3-5 seconds to turn headphone Bluetooth on,then enter pairing mode.(the LED indicator light will be blue and red flashing quickly.)
  Start your mobile phone Bluetooth and find headphone Bluetooth pairing name “Srhythm NC75 Pro” to click it to pair.(the LED indicator light will be blue flashing slowly after paired successfully.)
  Hold the Multi-function Button for 3-5 seconds to turn headphone Bluetooth off.

• Press to adjust volume. Long press to skip to next/previous song.

• Long press the “Volume Up” and “Volume Down” buttons for 5 seconds, or Multi-function and “Volume Down” Buttons for 5 seconds to clear the pairing

• Press the Multi-function Button to play/pause music or answer/end call.

• Double-press the Multi-function Button to Reject an incoming call or Dial out the last call.

Function Details

Easy Pairing

1. Hold the Multi-function Button for 3-5 seconds to turn headphone Bluetooth on,then enter pairing mode.(the LED indicator light will be blue and red flashing quickly.)
2. Keep headphone and your mobile phone as close as possible during pairing process.
3. Turn on your mobile phone Bluetooth. Search for headphone Bluetooth signal on mobile phone and click “Srhythm NC75 Pro” to pair.(the LED indicator light will be blue flashing slowly after pairing successfully.)
4.  If you are asked for a password/PIN code during pairing procedure,please enter “0000” (four zeros).

Pair to the Second Bluetooth Device

1. Please make sure that headphone is connected to the first Bluetooth device successfully and music is not playing.
2. Hold the Multi-function button until the headphone switch off and continue with the steps “Easy Pairing”(Let the headphone re-enter pairing mode,the LED indicator light will flash blue and red alternately).
3. Pair headphone with the second device according to “Easy Pairing” steps.
4. Return to the first Bluetooth device and pair it with headphone again. Now both of your devices are paired with headphone.

Active Noise Canceling(ANC) ON/OFF

• To turn on ANC, press the ANC Button; (the LED indicator light will be green when ANC ON.)
• To turn off ANC, press the ANC Button; (the LED indicator light green color will be off when ANC OFF.)

Wired Mode
Headphone support AUX input for wired external audio source connection. Simply turn headphone Bluetooth off and plug in the audio cable.For any ANC Bluetooth headphone,it is still need battery power support for wired mode.
ANC also works in wired mode.Microphone only works in Bluetooth mode,not for wired mode.
Buttons can’t be used in wired mode (Except the ANC Button).

Voice Dialing
Press both “Volume Up” and “Volume Down” buttons simultaneously to activate voice dialing function(compatible with iPhone Siri and selected Android voice dialing software).

How to Wear

If your headphone has no sound or the microphone is not working
Please make sure that the headphone is connected before starting software

Airplane Adaptor Connection

Warning꞉

Only use for airplane,Can not be plugged into the power socket.

Headphone Specification

LED Indicator Light

• Pairing ꞉ Blue and red lights flash alternately
• Paired ꞉ Blue light flashes
• Playing꞉ Blue light slowly flashes
• Charging ꞉ Red light turns on
• Full Charge꞉ Red light turns off or Blue light turns on
• Battery Low꞉ Red light turns on with voice prompt
• ANC ON꞉ Green light turns on
• ANC OFF꞉ Green light turns off
• Bluetooth OFF꞉ Blue and red lights turn off

Please kindly note that perhaps sometimes these LED indicator light color will be mixed to become other colors(pink,purple,etc.) occasionally.

Technical Specification

• Product name꞉ Srhythm NC75 Pro
• Battery capacity ꞉ 750mAh
• Input꞉ 5V/1A
• Chip ꞉ ATS3015
• Charging time꞉ About 2 hours
• Use time ꞉ 30-40 hours
• Bluetooth version ꞉ V5.0
• Bluetooth profile꞉ A2DP, AVRCP, HSP, HFP
• Bluetooth range ꞉ 10m/33ft
• Waterproof rating꞉ IPX4
• Net weight꞉ 280g/0.61lb
• Impedance꞉ 32 Ω
• Driver diameter꞉ Φ40mm
• Frequency response꞉ 20Hz～20KHz

Charging
Use the included micro USB charging cable to connect to headphone Charging Port. Connect the other end of charging cable to a computer USB port or USB wall charger under 6.3V voltage.Turn off headphone Bluetooth and ANC function before charging. Headphones can’t be used during charging for your safety.The LED indicator light will be off or blue color when full of charge basing on headphone turn off status.Start your mobile phone Bluetooth and find headphoneBluetooth pairing name “Srhythm NC75 Pro” to click it to  pair.(the LED indicator light will be blue flashing slowly after pairing successfully.) Hold the Multi-function Button for 3-5 seconds to turn headphone Bluetooth off.
NOTE꞉ Ambient temperature exceeds the charging  temperature range of 32° F (0°C) – 113° F (45°C).

If any issues, here tips for you꞉

1. Full charge your headphone with original Micro USB Charging Cable and 5-10W power wall charger (don’t use fast charger)
2. Reset headphone by inserting audio cable into headphone audio socket then removing it. Or the upgraded NC75 Proheadphones would be reset automatically when charging. Delete Pairing꞉ Hold both “Volume Up” and “Volume Down”
   buttons simutaneously for 5 seconds. Or hold both Multifunction Button and “Volume Down” Button for 5 seconds.

Q&A

1. Q꞉ Why can’t headphone pair with my mobile phone?
   A꞉ Please check if your headphone is in pairing mode or reconnection mode,check if Bluetooth search function of your Bluetooth device is turned on,if all done,then go to Bluetooth menu of your Bluetooth device,delete/ignore the headphone Bluetooth pairing name “Srhythm NC75 Pro”.After that,you can try to reconnect Bluetooth according to above “Easy Pairing” steps.

2. Q꞉ Why can’t headphone turn on?
   A꞉ Please double check the battery status of your headphone.

3. Q꞉ Can I replace battery in the headphone?
   A꞉ No,you can not.Headphone uses a built-in non-detachable Li-Polymer battery that can’t be replaced.

4. Q꞉ Can I use headphone while driving?
   A꞉ For your safety,we strongly recommend that you do not use headphone while driving to avoid distraction.

5. Q꞉ Why does headphone sometimes disconnects with Bluetooth device within 10 meters?
   A꞉ Please check if there are any metal materials or obstacles within a relatively close range or your surroundings that perhaps interfering with Bluetooth connection.This may happen because Bluetooth is a radio technology which is sensitive to objects between headphone and other devices. Delete the Bluetooth pairing name on your ALL devices(it will toggle between your connected devices due to multi-point connection),restart it. then reset your headphone by inserting the included audio cable into headphone audio socket and removing it(sometimes need to insert several times to reset successfully),then reconnect it.

6. Q꞉ Why can’t I hear any sound from my computer or mobile phone?
   A꞉ Please check if output channel of your computer supports A2DP profile.Also check the volume settings on your headphone and computer/mobile phone.

7. Q꞉ Why am I unable to use headphone to control the volume of a track playing on an APP on my mobile phone?
   A꞉ Due to configurations of different application software,headphone may not be completely compatible with some APPs.

8. Q꞉ What do I do if Bluetooth can not close or open?
   A꞉ Please reset Bluetooth function of headphone by inserting an audio cable into headphone audio port,then removing it.Before re-connecting,kindly remember to delete/ignore headphone Bluetooth pairing name “Srhythm NC75 Pro” on your mobile phone.

9. Q꞉ Why does Bluetooth turn off when I connect an audio cable?
   A꞉ This is one of our special features. When users insert an audio cable into headphone audio port, all Bluetooth feature buttons stop working and Bluetooth turns off. But,Bluetooth will be available again when audio cable is moved.

10. Q꞉ Why can’t I turn headphone on/off?
    A꞉ Please note that ANC and Bluetooth are indicated by the same LED indicator light(but different light color), with a green light for ANC and a blue light for Bluetooth. If you need to turn Bluetooth on/off,you can turn off ANC firstly in case that you make confused by the color lights.But you will be very familiar with the light color meaning after using few times because it is simple and easy.

11. Q꞉ Why does audio quality become poor on Windows PC?
    A꞉ Some customers have mentioned poor audio quality on Windows PC.Please note that there are “Headset” and “Headphone” modes you can toggle by changing your outputdevice.Selecting “Headphone Mode” will drastically improve the audio quality.”Headset Mode” is designed for highly  compressed VOIP calls,etc.That’s not the fault of headphone product,that’s just the limitation of that protocol.If you are in “Headphone Mode”,the audio quality is fantastic.

FCC Caution

Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
This device complies with part 15 of the FCC Rules. Operatio  is subject to the following two conditions꞉(1)This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

IMPORTANT NOTE꞉
NOTE꞉ This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures꞉

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

FCC Radiation Exposure Statement꞉
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment .This equipment should be installed and operated with distance ＜5mm between the radiator& your body.

ISEDC warning

This device complies with Innovation, Science, and Economic Development Canada license-exempt RSS standard(s). Operation is subject to the following two conditions꞉ (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. The device is compliance with RF exposure guidelines, users can obtain Canadian information on RF exposure and compliance. The distance from body to use the device is ＜5mm.

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>