A very simple vocals booster for an ipod, mp3 player, or iphone. It's okay, but not professional grade or anything.
Step 1: First and Only Step
a speaker(if your ipod doesn't have one built in)
a plastic bag
Put the speaker inside of the bag. It doesn't have to be sealed. If you have like an ipod touch or an iphone, you can just put that in and take it out to change the songs. It's pretty simple and i came up with it while day dreaming, so don't expect it to be professional grade. Please rate... it boosts my self confidence... as long as it's a good rate.