PATRIOT LIGHT WEIGHT Behind-the-Head Headset with QD® (Quick Disconnect) Radio Adapter. Push-pull mechanism locks the Cable to the Radio Adapter but is also easy to release. Single Speaker and Noise Canceling Mic. Optional Finger PTT. Rugged METAL Headband with Padding around Ear hooks.
Fits older Vertex Standard radios with multi-pin connector (note: NOT compatible with VX-537 or NYPD models) including: VX-310, VX-520,VX-520UD, VX-600, VX-800, VX-900.