Retevis CP185 CP200D Earpiece, Compatible with Motorola CP100D GP300 GP2000 BRP40 RMU2040 RMU2080D RDU4100 RDU4160D DTR700 HYTTC610 Radios, Volume Adjustable Walkie Talkie Earpiece with Mic(10 Pack)

M head 2 pin; compatible with CP185 CP100 CP100D CP200 CP200D GP300 GP2000 BRP40 A8 RMU2040 RMU2080 RMU2080D RDU4100 RDU4160D RDM2070d RMV2080 DTR550 DTR650 DTR700 DLR1020 HYT TC610 walkie talkies and more; can't compatible with any Retevis walkie talkies ^^ Volume adjustable; walkie-talkie earpiece has a sound adjustment knob; sound can be adjusted according to the applicable occasion and your own needs ^^ G shaped earhook earpiece; earhook design fits snugly in your ears without dropping for long time comfortable wearing; 360 rotatable ear hook which fits right or left ear and adjustable vertically to fit different ear size ^^ Long length and advanced PU wire; length of plug to PTT 37.4 inch; length of PTT to ear hang 20.42 inch; long enough and excellent for outdoor activities ^^ 360-degree rotating back clip; you can fix the intercom microphone in a convenient position for speaking to facilitate communication