Features: 1.This walkie-talkie headset is tailor-made for helmet users. Applies to open face and close helmet dual speakers that enhance sound and clarity. 2.Two speakers and one microphone can be installed inside the helmet. 3.This is the most powerful communication solution for motorcycle riders and any other sports rider wearing a helmet. 4.PTT(Push To Talk) with built-in microphone, speak at any time. 5.Stable signal transmission. You can listen clearly in any loud environment. Specification: Line length: 150cm Colour: Black Weight: 155g. Compatible with: ICOM IC-F3, IC-F3S, IC-F4, IC-F4S, IC-F4SR, IC-F4TR, IC-F10, IC-F11, IC-F11BR, IC-F11S, IC-F14, IC-F14S, IC-F20, IC-F21, IC-F21BR, IC-F21GM, IC-F21S, IC-F24, IC-F24S, IC-F33, IC-F33GT, IC-F33GS, IC-F43, IC-F43GT, IC-F43GS, IC-F3021, IC-F3021T, IC-F3021S, IC-F3023, IC-F3023T, IC-F3023S, IC-F3026, IC-F3026T, IC-F3026S, IC-4021, IC-F4021T, IC-F4021S, IC-F4023, IC-F4023T, IC-F4023S, IC-F4026, IC-F4026T, IC-F4026S;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 Package list: 1 * Headphone Note: 1. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. 2. The measurement allowed error is +/- 1-3cm.