Covert Acoustic Tube Earpiece Headset Mic for baofeng Radios. Baofeng: BF-480 BF-490 BF-320 BF-V6 BF-V7 BF-V8 BF-658 BF-520 BF-530BF-666 BF-777 BF-888 BF-999BF-666S BF-777S BF-888S BF-999S. Hidden microphone inside PTT switch.
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