Zeadio Shoulder Remote Speaker 3.5mm Headphone Jack Mic Microphone for 2 Pin Icom Cobra Maxon Yaesu Vertex Radio Ic-40 Ic-4008a Ic-4088a Ic-4ga Ic-4gat Ic-4ge Ic-4gxa Ic-a1 Ic-a2 Ic-a20 Ic-a21 Ic-a22 Etc. Talk and listen without ever holding your radio. Push-to-talk button and microphone are located on the accessory for quick and easy use. Great for noisy AND quiet areas because speaker is located right near user's ear. Radio can be placed anywhere with Microphone/Speaker conveniently located - wear it on your collar to keep the volume near your ear Built-in PTT and microphone is very handy Sold exclusively by Zeadio