Features: Enable you to talk and listen without having to move the radio, clipping the mic where convenient and use it to listen and transmit. This microphone is in excellent condition. It is for commercial PMR radios and is designed for tough duties. The PTT switch is designed to be very durable as is the connecting cord fixing. It has an Icom standard RJ-45 connector. It does not have up/down buttons for changing frequency. Specification: Heavy duty push to talk PTT button located on the side. clear sound performance and comfortable holding The casing is made of durable plastic material With metal clip at the top Diameter 4.2mm PU cable is flexible and durable Connector: RJ-45 8-pin Plug Compatible Car Radio Models For ICOM handheld radios IC-F1821/D IC-F1721/D IC-F2821/D IC-F2721/D IC-F5061 IC-F5063 IC-F6061 IC-F6063 IC-F520 IC-F521 IC-F620 IC-F621 IC-F111 IC-F121 IC-F211 IC-F221 IC-F111S IC-F121S IC-F211S IC-F211S IC-F610 IC-F620 MT version IC-FR3000 IC-FR4000 etc Packaging includes: 1*Handheld Speaker