A lot of headphones today come with volume control built in on the wire. If your headphones didn't, though, you can craft your own with a few basic, salvagable electronics. There are actually two ways ...

DIY web site Instructables steps through how to build your own scroll wheel—like the $45 Griffin PowerMate—with an old mouse, remote control car wheel (or similarly sized wheel that fits your hand), ...

One of the things that many folks like when they are using headphones or earbuds with a music phone or MP3 player is an inline volume control. If your favorite headphones or earphones lack the feature ...