Ear Phone Connection Hawk Lapel Mic 1-Wire Push-to-Talk (PTT) with 3.5mm earpiece jack is built with durable cabling, high-quality microphone and durable polycarbonate housing. Designed to withstand harsh environments. The full-size PTT is easy to find and operate. The PTT/mic cord is designed to be mounted to the front of a vest/carrier. Ideal for Police, Fire, EMT, elite security, executive protection and military. Use with your existing 3.5mm listen only earpiece. Compatible with Motorola APX 900, APX 1000, APX 2000, APX 3000, APX 4000, APX 4000XH, APX 5000, APX 6000, APX 6000LI, APX 6000XE, APX 7000, APX 7000XE, APX 8000, APX 8000H, APX 8000HSRX, APX 8000HXE, APX 8000XE, APX 900, XPR 6000, XPR 6100, XPR 6300, XPR 6350, XPR 6380, XPR 6500, XPR 6550, XPR 6580, XPR 7000, XPR 7000E, XPR 7300, XPR 7350, XPR 7350E, XPR 7380, XPR 7380E, XPR 7500, XPR 7550, XPR 7550E, XPR 7580, XPR 7580E two-way radios.