IMPRES Windporting RSM with Volume Toggle Switch, Orange Button, 3.5mm NON-Threaded Jack (IP68)
This IMPRES Remote Speaker Microphone (RSM) comes with Volume Toggle Switch and Emergency Button for easy operation. PMMN4099B features IMPRES technology providing superior audio by suppressing ambient noise, improving voice intelligibility and amplifying quiet transmissions. A 3.5 mm audio jack allows you to connect a receive-only earpiece for private communication. It also has a TIA4950 Div 1 and 2 intrinsically safe rating when used with radios with the same rating. This IMPRES RSM now features IP68 submersibility rating (2 meters for 2 hours) when used with compatible radios.