The Standard CMP460 is a remote speaker/microphone designed to be used with most Standard handheld VHF radios, including the following models: HX280S, HX370S, HX370SAS, HX471X, HX500S-Li, HX751, HX851, and HX760SBTK. It allows communication while the radio is in a holster or clipped to the user's belt. The speaker/mic can be positioned close to the operator's ear to allow contant monitoring of the radio's receiver. The unit is intrinsically safe for use in hazardous environments.
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Comments about Standard Horizon CMP460 Submersible Speaker Microphone:
Used in commercial setting offshore for 3 years on 2 HX370 handhelds and never had to replace a mic or radio. Am purchasing a 370 and mic for my own use on private vessels now and will probably last indefinitely!