This is a Peltor ComTac XP headset, used by the US military and others.
It is equipped with a "Sound Surround" function that cuts out loud sounds such as explosions and picks up and amplifies surrounding sounds.

Condition: Used, unused Power supply: 2 AAA batteries Headset color: OD
- Country of origin: Sweden (headset)

*The sponge part of the microphone for capturing ambient sound has deteriorated.
*The ambient sound capture function has been confirmed, but the operation of the communication function has not been confirmed.
*This product is only available in stores as we would like you to check its condition.