The Microsoft foldable keyboard is designed to work with iPad, iPhone, Android, Windows tablets, and Windows Phone. It synchronizes very easily with any device simply by opening it. Pair the keyboard with any combination of two compatible devices and quickly switch between them with one touch. The Microsoft foldable keyboard features a waterproof full-size keyboard for easy use in typing. It operates with a rechargeable battery which with a single charge, it can last for over three months of use. Finally the keyboard uses the latest technology, Bluetooth 4.0, allowing it to consume less power.