Push-To-Talk system for communications headsets - TP-120 / U-174 / U-93 / Helicopter socket on headset end, Motorola Jedi plug on radio end - Pre-wired for Military / NATO-US / Peltor wired headsets (MIC -, EAR +, MIC +, EAR -). Please contact us if you would like it wired for a different format (NATO-UK, Off-road, PCI, Old-school Peltor, etc.) - Heavy duty braided cable - Fits the following Motorola radios: For Motorola GP Series: GP900 , GP9000 ,GP1200, GP9000, MTS2000 , For Motorola MTX Series: MTX838. MTX 900, MTX960, MTX1000, MTX 8000, MTX9000 MTX-LS, MTX-B5, MTX-B7 For Motorola XTS Series: XTS1500, XTS2000, XTS2500, XTS3000, XTS3500, XTS5000 , XTS5100, XTS7700, XTS 5000R MT Series: MT2000, MT6000, MT1500,MT2000 EFJohnson: 51SL, 5000, 5100, 5700 ,7700 SERIES, 511X, 512X, 518X Other For Motorola: HT1000, HT 2000, JT1000, PR 1500, MT2000, MTS2000