MOTOROLA two way radio / walkie talkie headset compatible with the following radio models:

Motorola XTN Series: XTN445, XTN446, XTN500, XTN600

Motorola XV Series: XV1100, XV2100, XV2600, XV4100

Motorola XU Series: XU1100, XU2100, XU2600, XU4100

Motorola CLS Series: CLS1110, CLS1410, CLS1413, CLS1450, CLS1450C, CLS1453C

Motorola CP Series: CP88, CP040, CP100, CP110, CP125, CP150, CP200, CP250, CP300, MOTOTRBO CP200D

Motorola Other Series: GTI, GTX, LTS2000, VL50, VL130, PMR446, ECP100, PR400, Mag One A8 BPR40, Mag One BPR20, EP450, AU1200, AV1200, DEP450, DLR1020, DLR1060 PR400

Motorola Bearcom BC10, BC20, BC90, BC95, BC120, BC130 Motorola RM Series: RMM2050, RMU2040, RMU2043, RMU2080, RMU2080D, RMV2080

Motorola/Wal-Mart RDX Series: RDV2020, RDU2020, RDU2080D, RDV2080D, RDU4100, RDU4160, RDU4160D, RDV5100, RDM2020