Motorola PMMN4051 Windporting Remote Speaker Microphone, Intrinsically Safe - IS (FM Approved), IP55, 3.5mm audio jack. Includes 6-foot coiled cord assembly, swivel clip and quick disconnect latch.  Features windporting technology so background noise from high winds and severe weather conditions is dramatically lessened for clear communications.  Includes a 3.5 mm audio jack to accept secondary receiver audio accessories for discrete communication.

Replaces RSM NMN6193.

Compatible with  XTS5000, XTS3000, XTS2500, XTS1500, MT1500, MTS2000, MTX8000, MTX 9000, PR1500 portable 2-way radios.

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