AOER 2-pin Heavy Duty Rainproof Shoulder Speaker Mic Microphone Ptt Compatible for Motorola Radio Mu11c,Mu12,CLS1110,CLS1410,CLS1450 Etc 2-pin jack, Wide PTT for easy using, 3.5mm accessory jack at 1 side for earpiece Firm and durable housing, strain relief cable for maximum durability Push-To-Talk button and microphone are located on the accessory for quick and easy use Talk and listen without ever HOLDING your radio! A strong swivel retaining clip on the back for convenience.