Eli5: why do wired headphones that plug into your phone never need to be charged but wireless ones do?

Question

I thought maybe they got power from the phone but then I remembered old headphones plugged into a phone jack separate from the charging port so how come one type never needs to be charged and one does?

In: 0

Answer 1

The power goes through the wire.

If you’ve ever had noise canceling wires headphones, they need to be charged because the wire power is just enough for the speakers and nothing else