The Motorola PMMN4021 Remote Speaker Microphone offers Windporting, coiled cord, push-to-talk switch, swivel clip, 3.5mm audio jack and quick disconnect latch.  IP54 Rated.  Intrinsically Safe - IS (FM Approved).

The Windporting feature of this microphone helps lessen background noise from high winds and other severe weather conditions. Audio can pass through the speaker grill even when the microphone port is blocked by water.  Remote Speaker Microphones allow the use of 2-way radios without removing the radio from the belt or case. 

Compatible with XPR 6300, XPR 6350, XPR 6380, XPR 6500, XPR 6550, XPR 6580, XPR 7350, XPR 7550, XPR 7580.

The Windporting feature is specifically designed for windy outdoor environments and dramatically reduces the noise caused by howling winds and harsh weather.