ExpertPower® Speaker Mic for Motorola HT1000 JT1000 MT2000 GP900 GP9000 MTS2000 MT6000 MTX838 MTX900 MTX1000 MTX8000 MTX9000 MTX-LS XTS2000 MTX2500 XTS3000 XTS3500 XTS5000 XTS5100 XTS7700
I am a corrections officer and this mic beats having to reach for the radio constantly to communicate.  Used it for the Motorola XTS 3000.