If it quacks like a duck. Hard to say really why anyone but a young child would want this but hey, who are we to judge. According to the company's Web site, the Solid Alliance USB iDuck is aimed at those light-at-heart or just animal lovers. The iDuck uses a USB 1.1 interface and has a storage capacity of 256MB. When plugged into your computer's USB port, the iDuck will light up. Six different colors are available. Choose from pink, yellow, blue. Tangerine, Army, and Heart.