No sound from one side of the earphones


If no sound is heard from one side of the earphones, restoring the settings of the earphones to the initial state may solve the problem.
Follow the steps below to check whether there is any abnormality with the sound output.

Restoring settings to the initial state

    Start by deleting the registration information of this unit from the BLUETOOTH setting on the BLUETOOTH device. Charge the charging case.

  1. Insert the earphones into the charging case

  2. charging_A11T_1

    After a few seconds, the indicators on the earphones and charging case will turn on.


    Click here if the indicators do not light up or start flashing >>

  3. Press and hold the button on both sides of the earphones for about 15 seconds to initialize

  4. initialize_A11T

    After the indicator has flashed twice, the earphone is charged and the indicator lights up.

    If the indicator does not flash, repeat step 2 from the beginning.

  5. Remove both earphones at the same time

  6. connecting_A11T_1

    The indicator on both earphones lights up and the power turns on.

    After a short while, the indicator on one earphone will flash quickly and repeatedly and the indicator on the other earphone will flash twice slowly and repeatedly. The earphones are now ready for device pairing.

    After taking out the earphones, move the L and R earphones close to the device to pair with.

Connecting to a Device

  1. Turn on the BLUETOOTH® connection setting of the device and select “JVC HA-A11T L”.

  2. connecting_smp_1
    connecting_smp_3 + Device List JVC Nav

    JVC HA-A11T L

    After you are connected to “JVC HA-A11T L”, you may be asked to pair with “JVC HA-A11T R” or “Headset”, depending on the BLUETOOTH device.

  3. Pair with “JVC HA-A11T R” or “Headset”.

  4. Pairing_screen_A11T_EN + Pairing screen A11T_EN


    *The screen display is an example.

    Depending on the BLUETOOTH device, you may be asked to pair with “JVC HA-A11T R” or “Headset” 2 times. Follow the instructions on the screen and perform pairing for 2 times.


    The earphones are connected to the device if the indicators on both sides of the earphones are flashing every 5 seconds.

Apps and Volume Control on the Connected Device

  1. Open an app and play

  2. app_01
  3. Adjust the volume

  4. volume_smp_1

Select the state after checking

Thank you for using Troubleshooting Guide.

There seems to be a problem with the product.
If you require more assistance, please contact your local JVC customer support.

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