Re:Corded headphones are making an unexpected return
by derefr on Tuesday November 16, 2021 @12:13PM
(#29243190)
Sure, they already make those ("radio" headphones); they sell them in pairs with 900MHz transmitters, for — among other things — people who are hard-of-hearing to better hear their (old, non-Bluetooth-enabled) TVs.
But I'm pretty sure what you're really trying to mentally re-engineer here is one of these: https://en-ca.sennheiser.com/stage-monitoring-headphones-hea...
Ever wondered what's in the rack on rear center stage of a concert? One of these, so the performers can all hear the mix over their own instrument/the crowd without tripping all over cables.
(More recently, they're two-way, meaning that the e.g. electric guitar you hear is passing through a chain of: headphone pre-amp, wireless transmitter, wireless receiver, mixing board, amp. Effects pedals? These days, they're wireless MIDI controllers that signal to a DAW plugged into the mixing board!)
Wireless headphones with a short wire hanging down to use as an antenna. Now send audio using 900MHz analog FM radio.
The signal quality can be made quite high by using enough power and/or bandwidth spreading.
Delay is near zero and it reconnects faster than you can blink at it.