Distorted sound, The headset does not operate properly & Low voice from callers

Distorted sound

• Keep the headset away from a microwave oven, wireless LAN device, etc.

The headset does not operate properly.

• Reset the headset. This operation does not delete pairing information.
• If the headset does not operate properly even if you reset the headset, initialize the headset.

Low voice from callers

• Turn up the volume of the headset and the connected device.

https://helpguide.sony.net/