Set Rail Adapter Kit Helmet Rail Suspension Support Helmet Earmuffs Dress Guard Bike Helmet Rail Adapter

Helmet headphones bracket: suitable for 19-21mm helmet guide rail.
Headphone adapter: headset helmet adapter arc rail adaptor wire the headset on the of the helmet according to your own situation, then fix it on the of the helmet
Rail adapter helmet: headset helmet adapter arc rail adaptor remove the earmuffs on the two sides of the earphone from the stand
Headset: headset helmet adapter arc rail adaptor buckle the earmuff on the hanging buckle of this rail adapter ( corresponding location, both left and right )
Headset holder: wire the headset on the of the helmet according to your own situation, then fix it on the of the helmet