Check the listing for details. TAC-SKY Noise Reduction COMTA II Tactical ARC Rail Bracket Silicone Headphones. Color: Black, Condition: New. Listed at 145.89 USD. Description Helmet type - Unlike traditional air gun headphones, helmet headphones can be mounted directly on the helmet. If you want to change the headband headphones, you can reduce many steps. Silicone earmuffs - ear caps are made of silicone instead of ordinary sponges. Therefore, the earmuff has higher elasticity and firmness, and the ear is more comfortable. Chip Protection - The chip of the COMTAC II earphone is well protected by a thin film layer, with higher defense, mold, dust and moisture resistance. High-strength material-plug cable made of Clara wire and TEP cap, stretchable, firm, antifreeze, resistant to aging and hard. Microphone 2-pin, the new microphone MIC for the Comtac series of noise-cancelling headphones, made of high-quality plastic, durable and durable. The soft sponge effectively protects the microphone from damage and scratches. The rail adapter of this headset can be used in the full range of FAST helmets, ACH helmets, MICH helmets and other helmets with ARC rails on the side. The headset can be rotated 360° when mounted on the helmet and can be moved up and down. The card position on the headphone holder can also be rotated. The length of the stand can also be adjusted.