Covert PTT Acoustic Tube Earpiece MIC for Motorola Radio GP88 GP300 2000 CT150

GP Series: GP63, GP68, GP88, GP88S, GP280, GP300, GP308, GP2100, GP3188. CT Series: CT150, CT250, CT450, CT450LS. If you can't make sure thisearphone/headset can work on yourtwo way Radio. SP Series: SP10, SP21, SP50, SP50 Plus.