Motorola Solutions PMMN4107, PMMN4107BBLK XE500, Radio Remote Speaker Mic (NO Channel knob). Five Integrated Mics, Adaptive Audio, IP68 Submersible Rugged Rating, and Extreme Heat Resistant Cable

Motorola Solutions PMMN4107BBLK XE500 Remote Speaker Microphones (RSMs) are designed with the user’s extreme environment in mind. Feature an asymmetrical shape to help you find the controls without looking, even while wearing bulky gloves. The large push-to-talk button and an extra-large emergency button, which illuminates orange when activated, are easy to locate, but shielded so they're not accidentally activated. Whether you are in the heat of a fire or exposed to extreme conditions, the XE500 RSM will keep you connected to your team. Designed to withstand heat exposure of 500˚F (260˚C) for up to five minutes and an IP68 (2m, 4 hours) submersibility rating, it will perform in extreme conditions. The APX XE500 RSM's five integrated microphones and Adaptive Audio Engine automatically change the level of noise suppression, microphone gain, Windporting and speaker equalization to produce clear and loud audio in any environment. The strategic placement of the microphones and enhanced water drainage provide users with the flexibility to wear it straight, upside down and even sideways while still delivering loud and clear audio.