Diy Bluetooth speaker
in this video, I will show you how to make a powerful portable Bluetooth speaker which lasts up to 5hrs on a single charge.
part list-
tp546 li-ion charging module- https://amzn.to/2YEsO7v
pam8046 class D amplifier- https://amzn.to/2T2AtHJ
mp3 player module - https://amzn.to/2MDYKmj
18650 li-ion battery- https://amzn.to/2KsX77Z
3w strong speaker- https://amzn.to/2LZ8lEI