Motorola Mission-Critical Wireless Remote Speaker Microphone RLN6544A

This Mission-Critical Long Range Wireless Remote Speaker Microphone (RSM) With battery and clip (RLN6544A) has up to 100m range and 28hrs of battery life. The RSM lets you maintain critical communications at a distance. With a large recessed Push-To-Talk button and large volume toggle switch for easy access, you can find the controls easily without having to worry about accidental activation, and for complete wearing flexibility, the clip is 360-degree rotatable.