Motorola PMMN4013 compact Windporting Remote Speaker Microphone with Push-To-Talk (PTT) switch and 3.5 mm audio jack.  Includes 6-foot coiled cord assembly, swivel clip and quick disconnect latch.  IP54 rated.

The windporting feature that 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.

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