Topic: Nintendo switch making buzzing sounds

Hi I was wondering whenever I charge my switch to my powerbank it creates a buzzing or high pitch noise but when I charge my powerbank which is charging my switch at the same time the sound stops

Then it's not made for the Switch it's most likely overloading it. So unless it has the Switch power charging specs one shouldn't used it.

I thought it wouldnt be overloading since the switch charging specs is 3.0A