Offered here is a 20 PIECES of new good quality aftermarket Remote Speaker Mic that works flawlessly with Motorola EX500 and EX600 radios. It enables you to talk and listen without having to remove the radio from your belt. It comes with a super strong clip that swivels and locks every 45degree on a metal base. Just clip the speaker mic where convenient and use it to listen and transmit. The speaker mic comes with a PTT button.