Replacement for Cobra 2.5mm jack Radio Models: ACXT Series: ACXT145, ACXT345, ACXT360, ACXT390, ACXT545, ACXT645, ACXT1035R FLT AM Series: AM245, AM246, AM645, AM646, AM845, AM846, AM847, AM1035, AM1035R CX Series: CX80, CX105, CX105C, CX107, CX110, CX112, CX190, CX312, CX1035R FLT CXT series: CXT85, CXT88, CXT90, CXT94, CXT95, CXT125, CXT135, CXT145, CXT175, CXT195, CXT225, CXT227, CXT235, CXT237, CXT275, CXT280, CXT345, CXT385, CXT390, CXT390S, CXT395, CXT400, CXT420, CXT425, CXT450, CXT531, CXT545, CXT565, CXT595, CXT645 CXR Series: CXR700, CXR725, CXR750, CXR800, CXR825, CXR850, CXR875, CXR900, CXR920, CXR925, CXR950 CXY Series: CXY800, CXY900 CTW Series: CTW135P, CTW285P DC FRS Series: FRS132, FRS237 LI Series: Li-3900, Li-4900, Li-5600, Li-6000, Li-6500, Li-6700, Li-7000, Li-7020, Li-7200, Li-7500 MR HH Series: MR HH100, MR HH200, MR HH330 (NOT Work with Marine HH350 FLT, HH350W FLT, HH450 DUAL, HH450 CAMO, HH550 FLT BT radios) MT Series: MT100, MT115, MT148K, MT200, MT250, MT300, MT525, MT550, MT600, MT615, MT645, MT650, MT750, MT800, MT850, MT975 PX Series: PX500, PX650, PX655, PX880 PR Series: PR237, PR240, PR245, PR260, PR270, PR350, PR375, PR385, PR550, PR560, PR580, PR590, PR650, PR3000, PR3100, PR3175, PR3180, PR3500, PR3550, PR3575, PR4000, PR4200, PR4250, PR4300, PR4700, PR4750, PR5060 PU Series: PU500, PU880 RX Series: RX385, RX680, RX685 Other Series: HM230, SM660