PTT-7 is a wired waterproof PTT controller, can be fixed to the standard metal ring on the handlebars of motor vehicles for Bluetooth adapter call control, plug in all 3-series and BTM-series on-board Bluetooth adapters with on-board power supply.PTT-7 waterproof cable PTT controller has two appearances, red keys for the PTT-7R Black Keys for the PTT-7B
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