It can be used on the following radio models:

GXT Series: GXT200, GXT225, GXT250, GXT255, GXT300, GXT310, GXT325, GXT400, GXT444, GXT450, GXT500, GXT550, GXT555, GXT565, GXT600, GXT635, GXT650, GXT656, GXT661, GXT700, GXT710, GXT720, GXT735, GXT740, GXT745, GXT750, GXT756, GXT757, GXT760, GXT771, GXT775, GXT781, GXT785, GXT789, GXT795, GXT797, GXT799, GXT800, GXT808, GXT850, GXT860VP4, GXT881, GXT895VP4, GXT900, GXT950, GXT991, GXT1000, GXT1050,GXT1000VP4,GXT1050VP4,GXT1091,GXT2000VP4,GXT2050VP4, GXT5000 LXT Series: LXT80, LXT100, LXT101, LXT110, LXT112, LXT114, LXT118 VP, LXT210, LXT216, LXT276, LXT300, LXT303, LXT305, LXT310, LXT312, LXT315, LXT316, LXT318, LXT319, LXT320, LXT322, LXT323, LXT324, LXT326, LXT328, LXT330, LXT335, LXT340, LXT345, LXT350, LXT360, LXT365, LXT376, LXT380, LXT385, LXT410, LXT420, LXT435, LXT440, LXT460, LXT480, LXT490VP3, LXT500 VP3, LXT535, LXT535VP3, LXT550,LXT560VP3, LXT600, LXT600VP3 for Alan Midland: * G5, G6, G7, G8, G9, G10, G12, M24, M48, M99, 445 Sport, 445 BT. * Midland Ocean, Midland Atlantic. * Alan 39, Alan 42, Alan 421, Alan 441, Alan 443, Alan 451, Alan 456R, Alan 507, Alan 607, Alan 643, Alan 654, Alan 95 Plus, Atlantic-I, CT-22. * Nautico 1, Nautico 3, Ocean, Pacific, SP-410, SP-420, SP-430, SP-440, for Midland: 72-822, 70-440BP, 75-501, 75-510, 75-785, 75-786, 75-810, 75-820, 75-822, 80-125, 80-150, 80-400, 80-425 X-Talker: T10, T31VP, T51VP3, T55VP3, T61VP3, T65VP3, T71VP3 and T75VP3 XT Series: XT18, XT20, XT511, XT511MO. G Series: G-225, G-226, G-227, G-300, G-300M