Durable PC housing ,Diameter 4.2MM PU cable .Extendable range :70CM-220CMBuilt-in standard 3.5mm jack,Allowing an operation of remote earpiece with 3.5mm plug.Push to talk PTT ,reinforced 360 degree back clip.Dimension:71*43*23MMApplications : For KENWOOD TH-F6.TH-F7,TH-G71,TH-K2,TH-K4,TK-2100,TK-2101,TK-2102,TK-2107,TK-2118,TK-2160,TK-2202,TK-2206,TK-2207,TK-240,TK-249,TK-250,TK-3101,TK-3102,TK-3107,TK-3118,TK-3160... Many connector types are available and optional for MOTOROLA ,KENWOOD,ICOM,YAESU/VERTEX,HYT two way radios.