Features: 1. The updated accessories are compatible with specific headphones for 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. 3. After installation, the earmuffs from Comtac communication headphones detach from the original headband and securely clip onto the buckle, which fits into the 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 hanging 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