Motorola PMMN4151AIMPRES NS750 Remote Speaker Microphone (Short Cable) PMR446 The multi-protocol digital radio operates

The multi-protocol digital radio operates under NXDN

lightweight and submersible making it ideal for a wide range of industries

The Motorola PMMN4113A is a feature-rich remote speaker microphone designed for enhanced audio communication

As expected for a  Motorola radio in this class

0-watt speaker for loud

Motorola PMMN4151AIMPRES NS750 Remote Speaker Microphone (Short Cable) PMR446 The multi-protocol digital radio operatesMotorola R7 Series IMPRES NS750 Remote Speaker Microphone (Short Cable) Key Features Short cable version 25. 7 cm Large Wired Nexus RSM Omni Directional Microphone Supports R7 (M2022. 03 or newer) and MXP600 (requires MR2022. 04) Nexus interface for secondary audio device such as a 3M Peltor Headset 3. 5mm Jack for receive audio earpiece Emergency Button Rugged & Waterproof IP68 Switch easily between RSM and secondary accessory Compatible With: R7