Astra T20 Surveillance Listen Only Earpiece - 3.5mm threaded plug - 26 inch cable - Left Medium Ear by ASTRA RADIO ACCESSORIES 
The T20 Series is a surveillance style listen only earpiece. This unit is very popular among security and law enforcement who prefer using a speaker mic for communicating as opposed to a surveillance kit. The T20 simply plugs in to the speaker mic redirecting the sound towards your ear. The advantage of listen only earpieces is that it prevents your environment from listening in to your private conversation. At the same time it also makes listening to your radio easier in loud noise environments.Read more Astra T20 Surveillance Listen Only Earpiece - 3.5mm threaded plug - 26 inch cable - Left Medium Ear
Astra T20 Surveillance Listen Only Earpiece - 3.5mm threaded plug - 26 inch cable - Left Medium Ear Feature
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