... sound transmit PTT button Various radio plugs are available Surveillance kit earphone for Kenwood two way radio TK-2102(Pro Prower) TK ... Lovely bread shape PTT is easy to use.--Compatible with two way radio for all brands.Compatible with :Kenwood : TK-208,220 ... KG669,KG659,KG679,KG689,KG639,KG699,KG801QUANSHENG : TG-K4AT TG-2AT,TG-45AT,TG-42AT,TG-22AT,TG-25AT,TG-UVPUXING : PX-777,PX777PLUS,PX333,PX888, ...