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

Wired ones are drawing power from the phone to work, wireless ones draw power from the battery inside the wireless buds themselves, when the wired earbuds are plugged in, that’s the only time you could use it, because that’s the only time it can draw power, it doesn’t matter if it’s not from a charger port, the charger port is where the phone gets its own power from