How do wireless headphones work from the inside?

Question

Do it yourself

Good day, I became interested in the internal structure of bluetooth headphones and is it possible to assemble my own
. Please tell me what are the minimum components that wireless headphones should include and what components modern compact wireless headphones, like apple airpods, consist of?

Answer 1

Homemade bluetooth headphones are easy, just get ordinary wired headphones and put a board with a bluetooth receiver + a small battery inside. Google has a lot of homemade bluetooth projects, you can get a sound no worse than expensive factory ones.
And it’s naturally impossible to assemble an analogue of airpods on your knee, at least a microscope will be needed there.

Answer 2

Speaker, amplifier, bluetooth module, battery, wireless charger coil, and all sorts of voltage converters, bms, and other kit. It is unlikely that something like this will work out on your knee - you simply cannot cram everything into a small case. The idea is not viable. What you can try to make from the real one is to convert overhead full-size headphones into wireless ones - there is just a place for all the tinsel.