How long does it take to charge the iPod shuffle via USB?
Charge time About 4 hours (2-hour fast charge to 80% capacity) http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore?productLearnMore=MB051LL/A Apple USB Power Adapter Use this compact, convenient USB-based adapter to charge your iPhone or iPod at home, on the road, or whenever it’s not connected to a computer. Price: $29.00 This compact power adapter offers fast, efficient charging at home, in the office, or on the go. Its universal design means that it works around the world, with the help of the Apple World Travel Adapter Kit (sold separately). Sources: http://www.apple.com/ipodshuffle/specs.