The TMC RA Headset is designed to be a helmet mounted headset and works perfectly with helmets with accessory rails.
True 3D hearing technology
For FAST Series Helmet Rails, Such as Maritime, SF, Highcut Sentry Helmet, Do Not Support AF, Team Wendy, MTEK and Other Helmets.
Only Headphones Can Not Communicate Directly. Need to Match OPSMEN and Original EARMOR, TCA, TRI and Other Military Regulations PTT. Not Suitable For Elements, Z Tactical, and Other PTT.