Ear-Microphone with PTT/ VOX Switch. 2.5mm/3.5mm right angle overmolded connector. For Motorola SP10, SP21, SP50, GP68, GP88, GP300, GP308, GTI, GTX, PRO1150, PRO2150, PRO3150, CT150, CT250, CT450, CT450LS, GP2000, LTS2000, P040, P080, P110, P1225, P1225LS, HTN446, XTN500, XTN600. No Adapter required