This C-shaped Earpiece with adjustable Two Pin design features a connector of 3.5mm, 2.5mm audio plug, a speaker diameter of φ15±0.5mm, an impedance of 32Ω±15%, a sensitivity of 103dB±3dB, 200Hz-3.5KHz frequency response, 6.0 X 5.0mm microphone -54DB±2, and hearing protection certification. It is compatible with MOTOROLA 2-Way Radio GP68 GP88 GP300 GP308 PR-400 models and is 100% compatible with original manufacturer equipment. 

Works with:

• CLS Series:CLS1413, CLS1450, CLS1450C, CLS1450CB, VL50

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

  XTN Serites: XTN446, XTN500, XTN600 XTN AX Series:AXV5100, AXU4100 XTN

  XV Series:XV1100, XV2100, XV2600, XV4100 XTN XU Series:XU1100, XU2100, XU2600, XU4100

  GP Series: GP2000 , GP2100, GP300, GP308, GP68, GP88, GP88S SP Series:SP10, SP21, SP50+, SP50 CT Series:CT150, CT250, CT450, CT450LS DTR Series: DTR410, DTR610, DTR650

  RDX Series:RDV-5100, RDV2020, RDU2020, RDU2080DD, RDU4100, RDV2080D, RDV5100

  Other Series: GTI, GTX, LTS2000, VL130, PMR446, ECP100, Mag One BPR400.

  Note: This earpiece is compatible for Motorola Radio, Don't work for Kenwood, Puxing, Wouxun, Baofeng.