USB Think Light Brightens With Your Typing SpeedCharlie White5/31/07 10:33am8EditPromoteGo to permalinkAre you typing as fast as you can? Type faster! The faster you type, the brighter the USB Think Light will get. It has an LED inside, so it won't sap too much energy out of your USB port, and you can turn it off when you get sick of feeling like a hamster on a treadmill. This mindless challenge will cost you $15.