RMN5074B RMN5074 - Motorola XTS2500 Public Safety Microphone (PSM) - 18" - Works with: ASTRO Digital XTS 1500/2500, MT 1500 and PR1500 3.5mm non-threaded audio jack is located on the microphone head. Not for VHF use. Not compatible with: XTS 3000, XTS 3500 or XTS 5000. ** RF Adapter is included with this microphone. Antenna is NOT included.