Powerbag Backpacks And Messenger BagsIntegrated into every Powerbag is the company’s exclusive Powerbag Charging System, which provides portable power for smartphones, iPods, tablets, e-readers, Bluetooth headsets, and more. Users can connect up to four mobile devices at a time using the included pre-routed connectors (one micro, one mini, one Apple) and USB port. To recharge the bag, simply plug it into a standard wall outlet with the included AC adapter. The Powerbag is available in five different styles and in multiple colors, with prices starting at $129.99.