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 connect securely 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 retaining loop if necessary. 3. Attach the earmuffs to the mounting buckles provided, aligning properly and clipping securely on both left and right sides. 4. Install the assembly onto the helmet by securing the buckles into the side grooves. 5. Route the headphone wiring along the top of the helmet and secure it using adhesive tape. Package List: 1 Pair x Headset Holder