This is a New Vertex MH50A7A Heavy Duty Speaker Microphone. This speaker mic works with the VX-600, VX-800, VX-820, VX-900 and VX-920. The MH50A7A is popular with public safety services like Police, Fire and EMS as well as others. This mic is also intrinsically safe.
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The item above is guaranteed to be as described. No warranty is expressed or implied on used items. Used items will not be DOA unless otherwise stated. New items will include a standard manufacturer’s warranty if available. If you have any questions, please ask. I am happy to answer your questions honestly and to the best of my ability.