Communicate clearly in difficult weather with this Windporting Remote Speaker Microphone. In howling wind, driving rain and severe weather, Windporting helps 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. IMPRES technology provides superior audio by suppressing ambient noise, improving voice intelligibility and amplifying quiet transmissions.