Code Red Headset SHERLOCK-K 2-Wire Microphone Code Red Headset SHERLOCK-K 2-Wire Microphone Features: A single wire microphone with a low profile, clear acoustic tube earpieceDdiscreet and extremely comfortable All components are field replaceable, which eliminates ANY downtime Cord is made with Kevlar to insure reliability, even in the toughest applications Rubber ear tip can be replace with one of our molded earpieces for extra comfort when using an earpiece for extended periods The QD feature allows for permanant placement in tactical vests or for rapid radio replacement during shift changes or emergency situations