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 IP54 meaning it can withstand water splashed from all directions and dust won't affect the operation no matter what.
Noise cancellation uses two microphones to improve audio quality, comparing front and second microphone signals to reduce levels of background noise. This makes it easier to hear messages clearly in loud environments such as construction sites, large crowds or amongst machinery, or the sound of sirens.
Summon help precisely when it is needed with this RSM featuring an emergency alarm button.
The 3.5mm audio jack supports a discreet, receive-only earpiece.