The Supreme Pro level dependent headsets are equipped with a noise cancelling boom microphone and a heavy duty down lead. The headset provides high noise reduction yet with a slim design. By wearing Supreme Pro headsets you can communicate effectively and safe as well as hearing commands and instructions without removing the hearing protector, even when weapons may be fired. Specifications for Sordin Supreme MIL CC Slim Headset: Manufacturer: Sordin Color: Black Fabric/Material: Fabric NRR: 21 dB Quantity: 1 Battery Life: 600 hours Age Group: Adults Last Chance: Yes Features of Sordin Supreme MIL CC Slim Headset Waterproof battery compartment Waterproof microphones for surround hearing and optimum sound direction location (IP67 tested). ASIC Battery save function, low battery warning (40), auto shutdown (4h), battery life time 600h. Sound level limitation, max 82 dB(A) Two loud speakers in each cup, one for surround hearing and one for radio/communication. Radio/communication works even when batteries are out. Electronics completly covered by a polymer to be fully waterproof. Slim cups to fit both left hand and right hand shooters. High amplification and natural sound reproduction without chopping and cutting out. Additional RFI protection. Package Contents: Sordin Supreme MIL CC Slim Headset