Electronics maker Logitech introduced Slim Folio keyboard for iPad tablet. She will be able to work for four years without replacing the batteries. This became possible thanks to the use of coin-like round batteries - such (or smaller) are put in the wristwatch. The keyboard communicates with the tablet via Bluetooth 4. If you work with the device two hours a day, then one set of batteries will last for four years.
Except for a long working time, Slim Folio almost does not differ from other Bluetooth-keyboards for iPad - except that the top row of keys gives quick access to different functions of iOS. The novelty is available in the version for the 9.7-inch tablet from Apple. The cost is $ 99.