How does bluetooth work? Does the phone and headphone connect to a satellite or something or does one or both of them send signals to each other?
In: Technology
Cheap headphones: Radio in one ear connects to your phone, receives signal, transfers sound over cable to the other ear.
Less cheap: Radio in one ear connects to your phone, receives signal, transmits by radio to other ear.
Expensive: Each ear connects to the phone individually, they work out which is which as a pair, and control for latency issues (might be slightly different for each ear, which could cause music to be off between the ears if not corrected).
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