Channel Sounding, for example, lets Bluetooth devices like trackers and smart locks find each other more easily and accurately. But you'd be forgiven for not knowing anything about it.
Best Bluetooth car kits for older cars 01:53 Bluetooth car kits let you talk hand-free while driving. Consumer Reports checked out GoGroove FlexSmart X2, Belkin CarAudio Connect AUX, Jabra Journey and ...
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