Guangzhou U I Technology BS346GC TWS Bluetooth Headset User Manual

June 6, 2024
Guangzhou U I Technology

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Guangzhou U I Technology BS346GC TWS Bluetooth Headset

Guangzhou U I Technology BS346GC TWS Bluetooth Headset

Bluetooth earbuds should be used with the compatible devices which support bluetooth wireless technology, making calls and enjoying music at any time freely.
Please read this user manual carefully, and also read your device’s user manual about bluetooth functions carefully before using. Please pay attention to those important safety and maintenance information.
Please keep your earbuds away from children.

Specifications

  • Bluetooth Version:
    V5.1

  • Bluetooth Profiles Supported:
    HSP, HFP, A2DP, AVRCP

  • Audio Decoding Protocol:
    SBC, AAC

  • Transmission Power:
    Class 2

  • Operation Range:
    Up to 10 meters

  • Frequency Range:
    2.4GHz-2.48GHz

  • Battery of Earbuds:
    45mAH Li-polymer Battery
    Charging Voltage of Earbuds:
    DC 5V±0.2V

  • Charging Time of Earbuds:
    About 1~1.5 hours

  • Battery of Base:
    380mAH Li-polymer Battery

  • Charging Voltage of Charging Case:
    DC 4.75V-5.25V

  • Charging Time of Case:
    About 1~1.5 hours

  • Charging Earbuds from Charging Case:
    2-3 times

  • Music Playing Time:
    ≥ 5 hours (50% volume)

  • Talk Time:
    ≥ 4 hours (50% volume)

  • Standby Time of TWS connect with mobile:
    About 60 hours

  • Driver Diameter:
    φ12mm

  • Driver sensitivity :
    114±1.5dB (1KHz)

  • Driver impedance:
    32Ω±15%

  • Driver frequency response:
    20Hz-20KHz

  • ANC frequency response:
    80Hz-1.5KHz

  • ANC average depth:
    ≥22dB

  • ANC maximum depth:
    ≥30dB

  • Dimensions of Charging Case (mm):
    L61×W45.5×H31.1

  • Dimensions of earbuds (mm):
    L34×W22.2×H23.5

  • Weight (single earbud):
    About 4.9g

  • Total Weight:
    About 48g

  • Charging Ambient:
    0℃~45℃

  • Non-charging Ambient:
    – 10℃~60℃

  • Storage Ambient:
    – 20℃~40℃

  • FCC ID:
    2AIXN346GC

*The time mentioned above may vary due to user’s operation habits and device settings.

Structure sketch

  1. Charging case opening snap
  2.  Charging case button
  3. Charging case indicator
  4.  Charging case type-C port
  5.  Earbud noise cancellation mic hole
  6.  Earbud touch panel
  7.  Eartips
  8. Earbud calling mic hole

Guangzhou U I Technology BS346GC TWS Bluetooth Headset fig
1

Earbuds Indicator and Prompt

No Status Operation Prompt
1 Power on Open  the  charging  case  or  long  touch  the earbuds for 2
seconds. Power on
2 Power off Put the earbuds into the case and close the cover. Power off

3

| Enter TWS pairing mode| Open the charging case and do not pick up the earbuds, long press the button of charging case for 10 seconds to reset.|

Du

4

|

TWS Pairing

| Open the charging case or long touch the earbuds for  2  seconds  to  power on,  the  earbuds  will automatically connect with each other.|

/

5

| Connecting with

phone

| After  TWS  pairing  successfully,  using  mobile  to search “BS346GC”.| Pairing
6| Connected

successfully

| Using  mobile  to  search  “BS346GC”  and  select from Bluetooth list.| Connected
7| Low battery

alarm

| When the battery less than 20%, there will be a

low battery alarm.

| Low battery

8

|

Reset

| Open the charging case and do not pick up the earbuds, long press the button of charging case for 10 seconds to reset.|

/

9| Charging| Put the earbuds into the case and close the cover.| /

Charging Case Indicator

No Status Indicator Light
1 Charging When charging the base, the indicator light keeps on red, and

then will keep on green after fully charged.



2

| ****

Battery indication

| The indicator off when charging case less than 5% battery. 5-20%: the light quickly flashes red.

20%-50%: the light keeps on red. 50%-80%: the light keeps on orange.

>80%: the light keeps on green.



3

| ****


Earbuds checking

| The indicator off when charging case less than 5% battery. 20%-50%: the light keeps on red.

50%-80%: the light keeps on orange.

>80%: the light keeps on green.

Wear earbud (R)/(L) respectively

Guangzhou U I Technology BS346GC TWS Bluetooth Headset fig
2

How To Wear

Step 1
Put earbud into cochlea as show

Guangzhou U I Technology BS346GC TWS Bluetooth Headset fig
3  Step 2
Slightly rotate earbud until firmly

Guangzhou U I Technology BS346GC TWS Bluetooth Headset fig
4

Step 3
Put the earbud to cochlear edge tightly

How To Charge Earbuds

  • Put earbuds into the case for charging.
  • The indicator off when charging case less than 5% battery.
    5-20%: the light quickly flashes red.
    20%-50%: the light keeps on red.
    50%-80%: the light keeps on orange.
    >80%: the light keeps on green.

Guangzhou U I Technology BS346GC TWS Bluetooth Headset fig
6

Notice: When charging case in 5-20% battery, the case needs to be charged, and will not charge the earbuds.
Put earbud(L and R) to the corresponding position in the charging case.

How to Charge Charging Case

Use the Type-C cable for charging.
When charging to the base, the indicator light keeps on red, and then will keep on green after fully charged.

Guangzhou U I Technology BS346GC TWS Bluetooth Headset fig
7

Use Type-C cable to connect with computer

Guangzhou U I Technology BS346GC TWS Bluetooth Headset fig
8

Use Type-C cable to connect with mobile phone charger

  • Note 1: Check charging device whether it is suitable for your earbuds or not before charging.
  • Note 2: Use only the supplied charger to charge your earbuds. Other device may violate the validation or the maintenance article of this product and cause danger.
  • Note 3: Do not try to open the built-in battery as this will damage your earbuds. Earbuds will lose its power automatically if un-used. In this case, fully charge your earbuds every 3-6 months.
  • Note 4: Do not expose of your earbuds into fire or water.

Turning ON/OFF

Method 1
Turn on: Open the charging case cover to turn on. It’s better to wait for 1 second before pick up earbuds for using.
Turn off: Put earbuds into the charging case and close the cover, the earbuds will turn off automatically 3 seconds later.
Note: Please do not open and close the cover too frequently.

Guangzhou U I Technology BS346GC TWS Bluetooth Headset fig
10

Method 2
Turn on: Touch earbuds for 2 seconds.
Turn off: Disconnect with Bluetooth device for 5 minutes, the earbuds will turn off automatically.

TWS Pairing

TWS Pairing

  1. Long touch the panel for 2 seconds to turn on, the earbuds will enter auto-pairing mode, waiting for a few seconds, the two earbuds will pair automatically, then use mobile to search .
  2. Open the charging case cover, the earbuds in case will enter auto-pairing mode, waiting for a few seconds, the two earbuds will pair automatically, then use mobile to search.

Guangzhou U I Technology BS346GC TWS Bluetooth Headset fig
12

Pairing with Mobile

  1. After TWS pairs successfully and connected with the mobile, the earbuds prompt “connected”.
  2. When the earbuds disconnects with the mobile, the earbuds prompt “Disconnected”, and the master earbud enters pairing mode.
    If the earbuds don’t connect with mobile within 5 minutes, they will turn off automatically.

Do as the above ways:
Using the mobile to search “BS346GC” and select it from Bluetooth list (Please refer to the bluetooth device user manual).
After connected with Bluetooth device, the earbuds will prompt “connected”.

Guangzhou U I Technology BS346GC TWS Bluetooth Headset fig
13

TWS Reconnected

  • METHOD 1:
    Touch the earbud(R/L) for 2 seconds to power on→wait for a few seconds, the two earbuds will connect automatically→the earbuds will connect with the mobile phone that has ever paired after a few seconds → reconnected successfully.

  • METHOD 2:
    Open the charging case to power on→wait for a few seconds, the two earbuds will connect automatically→ the earbud will pair with the mobile phone that has ever paired after a few seconds →reconnected successfully.

Single Pairing Mode by Manual

  1.  If without pairing record, double tap the panel after turning on, the earbuds will enter into pairing mode, and keep for 1 minute.
  2. If TWS has pairing record, please turn off the bluetooth function of connected devices firstly. The earbud will enter into pairing mode after 10 seconds and keep for 1 minute. ( During pairing mode, if turn on the other earbud, they will connect.)

Answer / End a Call
When call coming, double tap the earbud(R/L) to answer the call. In phone calling mode, double tap the earbud(R/L) to end the call.

Guangzhou U I Technology BS346GC TWS Bluetooth Headset fig
14

Reject a call
When call coming, long touch the earbud(R/L) for 2 seconds to reject the call.

Two-call Handling

When you are answering a call, there is another call coming :

  1.  Long touch the earbud(R/L) for 2 seconds to end the current call and answer the incoming call;
  2.  Double tap the earbud(R/L) to hold the current call and answer the incoming call;
  3. After the second implementation, double tap the earbud(R/L) to switch between two calls;
  4. After the second implementation, long touch the earbud(R/L) for 2 seconds to end the current call, and double tap the earbud(R/L) to end the other call.

Note:
To use the above functions, the mobile must support the Bluetooth hands free profile V1.5 and the mobile holding function (Network services from telecom) from has been started.

Music Playing/Pause
In connection mode, triple tap the earbud(L) to activate voice assistance, then triple tap the earbud(L) to exit.

ANC / Transparency Mode Switch

  • In Power ON Mode, long touch the earbud(R/L) for 2 seconds to switch normal / transparency / ANC mode.
  • In ANC mode, R&L prompts “ANC on”, in transparency mode, R&L prompts “Transparency on”, in normal mode, R&L prompts “All off”.

Gaming Mode
In Power ON Mode, triple tap the earbud(R) to enter gaming mode, R&L prompts “Gaming mode on”, then triple tap the earbud(R) to exit gaming mode, R&L prompts “Gaming mode off”.

Next / Previous Track
When in playing music mode, double tap the earbud(R) for next song. Double tap the earbud(L) for previous song.

Reset
Put the earbuds in the charging case, open the charging case cover and long press the reset button for 10 seconds, the charging case indicator flashes blue for 10 seconds quickly. Waiting until the indicator light turns off.

Maintenance
Do not use abrasive cleaning solvents to clean your earbuds. Prevent your earbuds from touching any sharp objects.
Keep your earbuds away from high-temperature, humidity and dust.

Trouble Shooting

Trouble Reasons Solutions
The earbuds fail to reconnect / earbuds noisy, can not operate The earbuds
broken down Put the earbuds into the charging case and close the cover for 20

seconds to let earbuds resume normal
Unable to turn on by opening charging case cover or touching earbuds area| Without enough battery capacity in the charging case or earbuds| Charge the earbuds and case at same time for 1-2 hours, to

ensure that the product has power

No sounds after pairing| Pairing failure or pairing overtime| Reset the earbuds and repairing
TWS paired, but can not search in mobile| The earbuds has too many pairing records| Reset the earbuds and repairing
The charigng case has no indication after the earbuds are put inside| Without enough battery capacity in charging case / earbuds metal pin poor contact| Charge the case for about 1-2 hours/ check whether the earbuds are put in position or the dirty matal pin leads to poor contact
One earbud no sound after connect with mobile| The earbud fails to connect with mobile| Reset the earbuds and repairing
Turn off automatically| Low battery| Charge the earbuds for 1-2 hours
Earbud echo| Volume is too loud or environment is noisy| Adjust volume on phone or change a place
Noise in call| Environmental interference or out of working range| Change place or go back to working range
Low voice of the calling party| Wrong Wearing| Follow wearing instructions
The charging case flashes blue every 1 second| Earbuds metal pins might be dirty, leading to short and over current, activating

over-current protection

| Clean the earbuds metal pin, put the earbuds back to the charging case, close and open the top cover, earbuds will resume normal
Earbuds single / double / triple touch failure| Time of double / triple touch is too long or touching operation failure| Double / Triple touching should be finished within 700ms. Put the earbuds to the charging case to wake up if touching operation failure
The earbuds fluzzing when touch the area| Block the mic hole during touch| Resume normal after put hands down
Without obvious ANC effect| Earmuffs sealing not good| Adjust to correct wearing position or replace with suitable earmuffs size, to ensure the earmuffs fit for wearing

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

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. Operation is subject to the following two conditions:

  1. this device may not cause harmful interference, and
  2. device must accept any interference received, including interference that may cause undesired operation.

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