Small card, big technology. Behind Cardberry's normal plastic card appearance lies some sophisticated technology. It contains a lithium-polymer accumulator battery with 35 milliampere-per-hour capacity and 0.6 millimetre width, a set of coils with high magnetic permeability, a 16-bit micro controller with ultra-low energy consumption and a dual-mode Bluetooth module that supports both 2.0 and low-energy standards. To transfer cards with bar-codes, light modulation imitates the laser-beam reflection from the real bar-code. The Cardberry comes with a reader that transfers data from your magnetic stripe cards to the app in less than a minute using QR codes. The reader also works as a wireless QI charger for the card's battery (and can charge any other QI supported device, like your smartphone). The electronic card's battery life is 1-3 months. General What is Cardberry? Cardberry is a gadget that looks like a normal plastic card and is designed to replace your stacks of loyalty cards. You simply upload them to the free Cardberry app and download whichever one you want to use when on the move. What's makes Cardberry different? Unlike existing solutions, Cardberry supports all types of loyalty cards including those with magnetic stripes. It also allows you to borrow friends' loyalty cards to get maximum advantages. What kinds of card can I upload to the app? Any! Discount cards, loyalty cards, membership cards, gift and bonus cards...the list is endless.CARDBERRY INC.