MH-66A4B IP57 (Intrinsically Safe) Submersible Speaker Microphone

If you are looking for a waterproof speaker microphone for your Vertex Standard Portable two way radio, the MH-66A4B is for you.

Compatible with: VX-231, VX-261 Series, VX-350 Series, VX-451 Series, ISVX-450 Series, EVX-261, EVX-531 Series, ISEVX-534.