Work and communicate in a cord-free environment. Motorola is on the front line of Bluetooth Wireless Technology by providing users of two-way radios the first Wireless Remote Speaker Microphone. This Wireless Remote Speaker Microphone communicates to a two-way radio through an adapter equipped with Bluetooth Wireless Technology and an Adapter-capable Battery that is attached to a Motorola two-way radio. The user simply turns on the radio and the Wireless Remote Speaker Microphone — the Bluetooth Technology does the rest! The Adapter and Remote Speaker Microphone with Bluetooth Wireless Technology “connect” and link to each other wirelessly. Includes: Microphone with Bluetooth Wireless Technology (HMN3158) and Radio Adapter (HHLN4125A); Adapter-capable Battery (HNN9003AR) is required but sold separately.