Features: 1. The updated accessories are compatible with specific headphones for a full range of FAST helmets, MICH helmets, and Peltor Comtac communication systems. 2. Tested compatibility allows Comtac I and Comtac II headphones to be attached to various FAST helmets using a mounting buckle. 3. After installation, the earmuffs from Comtac communication headsets detach from the original headband and clip directly onto the mounting buckle, which secures into grooves on both sides of the helmet. Once installed, the earmuffs can rotate freely. Usage: 1. Remove the earmuffs from the original bracket on both sides. 2. Extract the headphone wire from the cover, breaking the loop seal if necessary. 3. Attach the earmuffs to the mounting buckles provided, aligning and clipping them securely on the left and right sides. 4. Install the assembly onto the helmet. 5. Route the headphone wiring over the top of the helmet and secure it with adhesive tape. Package List: 1 Pair x Headset Holder