MaximalPower Surveillance kit with Kevlar enforcement in the cable for 2 Way Radio Kenwood TK380, TK3160 Hand Free Earphone, 2 pin plug USA based brand with warranty and customer service. 100% compatible with all original equipment manufacturer (OEM) parts. Push-To-Talk (PTT) mic with single surveillance style acoustic tube. Low profile clear ear tube provides outstanding incoming communications. TWO polyurethane jacketed, kevlar reinforced wires.