You want to increase the volume of iPhone music? Do not want to buy expensive speakers? You are on a camping trip or in the office and want to listen to music?
Here you will find the answer!

Step 1: Step One

What materials are needed?
2 cups Styrofoam / plastic / paper
Plastic bottle / can
Insulating tape
really cool and green. i will do it right now
I'm going to try this with my ipod! I'll see how it works!
It didn't do much... But it still worked a little.
i like it
Clever! <br> <br>Really this is not an amplifier, but surely works as if it were, that's what matters... <br>

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