Baiston D-K Professional Ear-Hook Headset for Two Way Radio Color Black Interface type: K (1x 3.5mm and 1 x 2.5mm) D shaped ear wearing more comfortable, more clear voice Compatible Brand: Baiston,Baofeng, Kenwood,Linton,Pu Xing,Weierwei,FDX,Wouxun,Quansheng