The Mojo Removable Power Card Wallet is reminiscent of a third-generation iPod nano, specifically because of the housing’s reflective metal bottom. The top, as well as the edge with the USB ports, are covered in glossy white plastic, and the whole thing is about as small as it can be at only 3.5” long and 2.2” wide. A door on the top opens to reveal the battery inside: we’re pretty sure that it was supposed to stay attached…