Causes
Oftentimes when a user is experiencing connection issues regarding connecting to their device or audio not being detected, this is due to software issues with the version of Windows or MacOS you may have.
To improve the audio quality, quit any applications using the Logitech Zone Vibe 100 (games, music, videos). If the headset is connected to a laptop you can check which application has access to the headset's microphone to see what mode it is on.
If you are experiencing issues with the microphone not detecting any sound when you are speaking into it, this may be because the position of the microphone boom is in the incorrect position. Make sure the position of the left ear cup boom is facing down.
This is because if the boom feature is facing upwards, the microphone will automatically mute itself.