How do wireless headphones work?
In: Engineering
You plug a transmitter into your computer (that’s the part that goes in the USB port).
This transmitter picks a specific radio frequency for communicating with a transmitter inside the headset. A portion of radio wave frequencies are set aside for this purpose, by law. The computer sends signals to the headset to confirm that it is there and what its status is. Once this is done, the computer can “talk” to the headset and tell it what sounds to produce, just like if the signal had been sent down a metal wire.
As long as the headset still has power, it can receive the radio signals and produce sound as instructed by the computer.
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