Tactical Radio Amplified PTT for Headset w/ Quick Disconnect(Hirose): NATO/Military Wiring, Gentex, Ops-Core, OTTO, 3M Peltor ComTac, XPI, MSA, Helicopter, & More - Vertex Standard, Yaesu, Horizon, Icom & Vertex Single Pin 3.5mm Twist On ConnectorP N: PT PTTV1 42RR A: The Material Comms PolTact Tactical Military Grade Quick Disconnect Push To Talk(Amped PTT) Adapter For Vertex Standard VX 6R VX 7R Horizon HX210, HX40, HX890 HX890E, HX870 HX870E, HX851E, HX760E, HX751E, HX407E, HX400 HX400E, HX400IS, HX370E, HX380, HX290E, HX210E HX210, HX40 HX40E, FT207R, Motorola EVX S24 & more. Helicopter Helmet Comms Compatible! Checkout the New V2 Version w 2 Push To Talk Buttons Compatible w : NATO