PMMN 4075 and 4076A IP54

PMMN4075/4076A IP54 Remote Speaker Microphone 

Communicate clearly in difficult weather with these Windporting remote speaker microphones. In howling wind, driving rain, and severe weather, Windporting help you communicate effectively and hear clearly. Windporting technology eliminates the whining and howling sounds of wind blowing across your remote speaker microphone. It also prevents water from clogging the microphone, which results in clearer transmissions.