The Matias Wireless Aluminum Tenkeyless Keyboard is a slim: aluminum: wireless (Bluetooth) keyboard with a similar layout to the familiar Apple Wireless Keyboard. It has two features that enhance your experience compared to the regular Apple Wireless Keyboard: 1. It has a rechargeable battery with a typical battery life of 1 year before needing charging: 2. It has the ability to pair to three Bluetooth devices at the same time: and easily switch between the three devices with the press of a button. Now you can use the same beautiful, great-feeling keyboard for your Mac, iPad, iPhone, Android, or PC; the keyboard even pairs with the optimal layout for each type of device: so when you switch between devices, the keyboard layout is what you expect.