The Motorola TIA4950 IMPRES Remote Speaker Microphone PMMN4071 is a robust communication tool designed for challenging and hazardous environments. Featuring IMPRES™ technology, it delivers superior audio clarity by suppressing ambient noise and amplifying quiet transmissions. The IP54-rated RSM withstands dust and water, while Windporting technology eliminates wind noise for clear communication in tough weather. Its 3.5mm auxiliary audio jack allows for discreet earpiece connection, enhancing privacy. Intrinsically safe and compliant with UL-TIA4950 standards, this RSM is compatible with Motorola DP2400e, DP2600e, DP3441e, and DP3661e radios, making it an essential tool for professionals in demanding industries.