Features: 1. The updated accessories are compatible with specialized headphones for a full range of FAST helmets, MICH helmets, and Peltor Comtac communication devices. 2. Tested compatibility allows Comtac I and Comtac II headphones to be attached to various FAST helmets using a hanging buckle system. 3. After installation, the earmuffs from Comtac communication headphones detach from the original headband and securely clip onto the buckle, which fits into grooves on both sides of the helmet. Once mounted, the earmuffs can rotate freely. Usage: 1. Remove the earmuffs from the original bracket on both sides. 2. Pull the headphone wire out from under the cover, carefully breaking the retaining loop. 3. Attach the earmuffs to the hanging buckles provided, aligning properly on left and right sides. 4. Mount 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