SUNDELY&reg; Throat Vibration Mic Headset Earpiece with Finger PTT for Motorola Multi-pin Radio GP900 MTX838 XTS2500 JT1000 HT2000 Multi-pin Throat Vibration Mic Headset Earpiece with Finger PTT for Motorola Multi-pin Radio Finger PTT, 1 spare earbud included, Multi-pin model GP900, GP1200, GP9000, MTX838, MTX8000, MTX9000 MTX-LS, MTX- B5, MTX-B7 XTS1500, XTS2500, XTS3000, XTS3500, XTS5000, XTS5000R, XTS5100, XTS7700, HT1000, HT2000, JT1000, PR1500, MT1500, MT2000, MTS2000, ASTRO EFJohnson: 51SL, 5000, 5100, 7700 SERIES, 511X, 512X, 518X