after watching many useful tutorials of king of random,kipkay ,aeszok and other athours i decided to make my own.for this i collected the materials.but on my way of collecting materials i found a new concept of making a small speaker.i could not buy big neodimiyam magnets and so i took out very small magnets from toys and then tried and actually it worked.and it is under only 25 cents.yes its true.so lets get started.
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Step 1: things needed
for this project you will need:
1)small neodymium magnets very small cilyndrical magnets:3. each costs 0.05 cents total 15 cents
2)a sheet of paper. cost 0.02cents
3)a piece of cardboard .can be found from any junkyards
4)some magnetic wires.can be salvaged from any electronics parts
5)two buisness cards.can be found from any buisnessmen
thats all you need.it will cost you17cents.