This Power Bug gives you the flexibility to charge your iPod shuffle at any wall outlet using the included USB-to-shuffle cable - also handy for syncing the 2nd generation shuffle at home or on the go. Also use the Power Bug to charge other mobile devices with your existing USB cable.Power Bug"s AC plug folds flat for easy storage in a bag or even a pocket. The detachable dock cable makes a good replacement for a lost 2nd generation shuffle dock. It"s a simple, practical alternative to your shuffle dock that can go with you anywhere.