Q1: What if only one side of the headphones has sound?

1. Check if you have put the left/right headphones on the correct ears; wearing them reversed can cause abnormal sound.
2. Check the volume and make sure the left and right channels are balanced and neither side is muted individually.
3. Place the headphones back into the charging case, wait 5 seconds, then take them out and reconnect to the device.
4. Check if the sound outlet is blocked by earwax or dust; gently clean it with a soft brush.
5. Restore the headphones to factory settings and pair again.

6. If none of the above works, contact after-sales support for inspection.
   

   
   

Q2: How to fix stuttering or disconnection after connecting?

1. Keep the headphones within 10 meters of the device, avoiding walls, metal objects and other obstacles.
2. Turn off other nearby Bluetooth devices and Wi‑Fi hotspots to reduce interference.
3. Check the headphone battery; low power causes unstable signal — charge in time.
4. Restart the headphones and your device, then pair again.

5. Stuttering in complex environments (outdoors, subway) is normal; move the device closer to the headphones.
   

   
   

Q3: What if calls are unclear or have background noise?

1. Check if the microphone holes are blocked or dirty; clean them with a soft brush.
2. Keep the microphone toward your mouth during calls and avoid covering it.
3. Avoid calling in windy or very noisy environments, as wind and background noise reduce clarity.
4. Restart the headphones and your device, then reconnect.

5. If noise continues, try a factory reset or contact after-sales support.
   

   
   

Q4: What if the touch controls are unresponsive?

1. Check for sweat or dirt on the headphone surface; wipe the touch area with a dry cloth to avoid reduced sensitivity.
2. Make sure you are using the correct gesture: tap lightly (do not press hard) and hold for the required duration (e.g., 3 seconds).
3. Place the headphones back into the charging case, then take them out and try again.
4. Restore the headphones to factory settings and pair again.
5. If the problem remains, contact after-sales support for inspection.