The radJacket CHARGE case gives iPod Touch a whopping 46 hours of music, 12 of video and 10 of web browsing on just a three-hour charge. The case is only available in Japan, but it must come to the UK soon. It’s not the first iPod case to be released in the U.S., but it’s pretty cool to have on your iPod Touch. It can also be used as a charger for the iPhone or iPod Touch, and can be charged for three hours.”]
Source: https://gizmodo.com/radjacket-charge-case-keeps-ipod-touch-juiced-protecte-380366