3M/Peltor ComTac VI Defender Electronic Earmuff Matte Finish Olive Drab Green NIB Natural Interaction Behavior Wireless Technology Includes Boom. With noise-canceling microphones" high fidelity speakers" and advanced digital signal processing" the ComTac VI headset provides a premier listening and communicating experience" both in and out of noise. Specifications for PELTOR ComTac VI Defender Electronic Earmuff Matte Finish: Manufacturer: PELTOR Additional Features: Electronic Earmuff Included Accessories: Boom Mic Features of PELTOR ComTac VI Defender Electronic Earmuff Matte Finish: Water and dust-proof noise-cancelling microphone (IP68) for clear speech transmission in noisy and harsh environments Package Contents: PELTOR ComTac VI Defender Electronic Earmuff Matte Finish