From An iPhone Jack And A Small Magnet He Creates A Very Powerful Speaker!
This are one of the 6 ideas you can put in practice at home and save a lot of money. In the first project this guy creates a speaker using an empty plastic bottle, a copper wire and 2 small magnets and an iPhone jack from a damaged headphones. The rest of the tutorial is very simple and cool to make. Lets watch it together and learn some cool tricks