If you already have an iPod touch 2G then the new mophie Juice pack would let you use your device for a longer time. It is a rechargeable lithium polymer batter with soft and non-slip grip and includes outstanding functionalities. This Apple certified gadget provides an extended battery life in an ergonomically planned protective casing. You need not take it out from the casing as it is designed with a USB cable that not just lets you charge but also sync it with Apple iTunes while the pass through headphone jack of the device even adds to the convenience.