Speaker microphone compatible with MOTOROLA XTS Series: XTS1500,XTS 2500, XTS3000,XTS 3500, XTS5000 , XTS 5000R * HT1000,HT 2000, JT1000,PR 1500, MT1500,MT 2000, MTS2000,ASTRO * GP900 , GP1200, GP9000 *MTX838 . MTX 900, MTX960, MTX 8000, MTX9000 MTX-LS, MTX-B5, MTX-B7 * FJohnson: 51SL, 5000, 5100, 7700 Series ect