2 WIRE EARPIECE WITH MIC & PTT. The Patriot Surveillance Radio Earpiece with M3 Connector is a professional, two-wire, surveillance earpiece with Kevlar reinforced, fully insulated cabling. It has two cords that separate from a junction box: the first provides a speaker and has a detachable audio tube at the end with an ear tip that fits either your left or right ear, while the second supplies a noise reducing microphone with a dual button, push-to-talk switch for redundancy.
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