This RSM features IMPRES technology, providing superior audio by suppressing ambient noise, improving voice intelligibility and amplifying quiet transmissions.

Communicate clearly in difficult weather with this Remote Speaker Microphone featuring Windporting technology. Windporting eliminates the whining and howling sounds of wind blowing across your remote speaker microphone while preventing water from clogging the microphone, resulting in clearer transmissions.
Built to survive, this RSM is approved to IP57 meaning it can withstand immersion for at least 30 minutes and dust won’t affect the operation no matter what.
With on RSM volume control, message volume can be controlled without having to reach for your radio, saving time and keeping your eyes on the task at hand. Summon help precisely when it is needed with this RSM featuring an emergency alarm button. Featuring a programmable button to put your favourite features directly at your fingertips.