Durable PTT button allows push for hands-free calling; sensitively captures clear and loud sound for transmission* The cable length between the 2-Pin connector and the PTT is approximately 100 cm.* The cable length between the 2-pin connector and the air tube is approximately 113 cm.All-terrain vehicles, racing games, skiing, racing, outings, hiking, car trips, teamwork, large-scale projects, security, surveillance, and noisy environments.Compatible modelsFit For PuxingPX-777/Plus PX-666 PX-888/K PX-328 PX-333 PX-999 PX-555 etc.Fit For HeydayTG-K4AT, TG-2AT, TG-45AT, TG-42AT, TG-22AT, TG-25AT, TG-UV2, etc.Fit For HYTTC-268, TC-368, TC-268S, TC-368S, TC-368G, TC-265, TC-265S, TC-365, TC-365S, TC-270, TC-370, TC-380, TC- 380M.Fit For TYTTYT-300 /500 /600 /800 /900 /9900 /TH-F2 / TH-F3 / TH-F5 / TH-F6 / TH-F7 / TH-F8/D / TH-UVF9/D etc.Fit For KenwoodTK-208, TK-220, TK-240, TK-240D, TK-248, TK-250, TK-270, TK-270G, TK-272, TK-272G,TK-278G, TK-308, TK-320, TK-340, TK-340D, TK-348, TK-350, TK-353, TK-360G, TK-360, TK-370, TK-370G, TK- 372G, TK-372, TK-373G, TK-373, TK-378G, TK388GPro-Talk TK-2100, TK-2102, TK-2102L, TK-2107, TK-2118, TK-2160, TK-2170, TK-2170K, TK-2200, TK-2200L, TK-2200LP, TK-2200LP2 , TK-2202K, TK2212, TK-2212K, TK3100, TK-3101, TK-3102, TK-3107, TK-3130, TK3131, TK3160, TK3170, TK3170K,3TK00TKL0, TK-3202, TK-3202K, TK-3202L , TK-3230, TK-3230XLS, etc.TH-D7, TH-D7A, TH-D7AG, TH-D7E, TH-F6, TH-F6A, TH-F7, TH-F7E, TH-G71, TH-G71A, TH-G71E, TH-K2, TH- K2A, TH-K2AT, TH-K2E, TH-K2ET, TH-21, TH-21AT, TH-21BT, TH-22, TH-22A, TH-22AT, TH-22E, TH-25, TH-26, TH-27, TH-28, TH-31AT, TH-31BT, TH-41AT, TH-41BT, TH-42, TH-42A, TH-42AT, TH-42E, TH-45, TH-46, TH- 47, TH-48, TH-55, TH-75, TH-77, TH-77A, TH-77E, TH-78, TH-78A, TH78-E, TH-79, TH-79A, TH-79E, TH-205, TH-205A, TH-205AT, TH-205E, TH-215, TH-215A, TH-225, TH-225A, TH-235, TH-235A, TH235E, TH-315, TH-315A, TH-415, TH-415A,