@richlv @Oleksii @EUCommission some cheap mp3 players actually used to charge over the headphone jack.. Actually i think my mom still has her old first mobile phone somewhere that charged over the tiny headphone jack (the one that's even smaller than 3,5mm)
@CIMB4 @richlv @Oleksii @EUCommission iirc ipod nano charges over 3.5mm headphone jack as well