* Extremely Durable * Kevlar-Reinforced Wiring * Staple Strained Reliefs * Plugs Directly Into Many Radios * 1 Year No-Questions-Asked Warranty The Tracker is an extremely durable answer for the officer who wants to use his shoulder mic but needs to receive info privately. This Listen-Only earpiece is designed for use with Shoulder Microphones, although it will plug in directly to some radios, also. It is extremely durable and, of course, includes a one-year, no-questions-asked warranty. The Tracker is also the most comfortable possible Listen-Only earpiece. Used with one of our Custom Skeleton or Semi-Custom Skeleton earpieces, you will find this comfortable even for 12 hour shifts!