Farmunion Handheld/shoulder Mic with Speaker for Icom Radios Ic F3161 F4161 T/s Clear sound and accurate communication Wide PTT Key-press area, convenient for operating Firm and durable housing, strain relief cable for maximum durability Radio can be placed anywhere with Microphone/Speaker conveniently located - wear it on your collar to keep the volume near your ear 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