Icom compatible quality two wire ear piece with medium sized push to talk (PTT) This quality ear piece is designed for use by door supervisors, bouncers and security officers, 2 wire meaning that the acoustic tube and the PTT are on separate wires allowing the user to connect the combined PTT and microphone to their lapel, tie or shirt. The twin pin plug is compatible with the following radios, if you are in doubt then please contact us for advise. Icom 2-pin Radio IC-F20, IC-H2, IC-H6, IC-J12, IC-M5, IC-T2A/T2H, IC- T7A/T7H, IC- T22A, IC- T81A, IC-T90A, IC-U12,IC-U16, IC- V8, IC-W32A, IC- 4088A,IC-2GXAT, IC-91A, IC-91AD, IC-92AD, IC-P7A, IC-Q7A, IC-T22A, IC-T2H, IC-T7H, IC-T81A, IC-T90A, IC-V8, IC-V82, IC-U82, IC-V85, IC-W32A, IC-02AT, IC-03AT, IC-04AT, IC-2GAT, IC-4008A, IC-4088A, F3, F3S, F4, F4S, F4SR, F4TR, F10, F20, F30G, F31, H2, H6, T2A/T2H, T7A/T7H, T22A, T81A, T90A, U12, U16