Maxton Handheld Portable remote speaker mic for MOTOROLA and TYT Radio Durable PC housing ,Diameter 4.2MM PU cable .Extendable length range :70CM-220CM Built-in standard 3.5mm jack,Allowing an operation of remote earpiece with 3.5mm plug . Work for MOTOROLA:T6200, T6220, T5720, T5728,T5200,T5300, TYT: UV3R etc Remote Speaker mic built-in 3.5mm jack 360 degree back clip Diameter 4.2mm PU Dimension:71*43*23mm Push to talk PTT ,reinforced 360 degree plastic back clip .