feature: 1. The new version of the accessory connects to the full range of FAST helmets, MICH helmets and dedicated headsets for peltor comtac intercoms. 2. Through the test, the Comtac I and Comtac II earphones can be connected to the full series of FAST helmets through the hook. 3. After using the buckle, the earmuffs of the Comtac walkie-talkie headset will be separated from the curved headband, and directly clamped on the buckle, which is used for the comtac headset and can be rotated freely. usage: 1. Remove the earmuffs from the brackets on both sides 2. Take out the wire on the earphone from the protective case (the iron ring must be broken) 3. Clip the earmuffs on the hook of the product (alignment position, clip on the left and right sides) 4. Installed on the helmet 5. Wrap the headphone cable around the top of the helmet and secure it with tape Included: 1 Pair x Headphone Holder