Features: 1. The updated accessories are compatible with specialized headphones for FAST helmets, MICH helmets, and Peltor Comtac radio communication systems. 2. Tested to ensure compatibility, Comtac I and Comtac II headphones can be attached to various FAST helmet models using a secure buckle system. 3. The earmuffs from Comtac radio headphones can be detached from the original headband and directly clipped onto the mounting buckle. The buckle secures into grooves on both sides of the helmet. Once installed, the earmuffs allow for smooth rotation. 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 present. 3. Attach the earmuffs to the hanging buckles provided, aligning properly and securing on both 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