Please check if you connect the headphones to a second device at the same
time. Clear the pairing record or turn o the Bluetooth on the device which you do
not need temporarily.
Why do the headphones lost sound all of a sudden?
1. Please choose to pick up phone calls via the headphones.
2. Please do not mute the phone calls.
3. Please clean the mic holes to avoid dust or secretions blocking.
4. Please kindly adjust the volume through the headphones and devices.
5. If you are using the headphones with an Android phone, please check the
settings to see if you have allowed both phone audio and media audio to be
transmitted through the headphone.
6. Please change to other devices to have a try.
Why can’t the other side hear me well when calling?
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