While the world seems to be beating a path to the door of manufacturers of noise-canceling earphones, inventor Tammy Erdel has a much better idea that could save some lives.
AIRbudz replace the removable earbuds on your favorite set of earphones and allow the sound around you to mix with the tunes you're listening to. You probably don't want to use the AIRbudz in the comfort of your home, but they're designed to work when you're outside cycling, walking, skateboardi
