Matias FK418BTB Wireless Aluminum Keyboard for Mac, Windows, iPad, iPhone, Android Devices With the FK418BTB, Matias presents an ultralight and ultrathin aluminum keyboard that matches the Macbook's look and color. The Matias Wireless Aluminum Keyboard features Mac-friendly function keys for controlling screen brightness, volume, and iTunes. Unlike the iconic Apple support keyboards, you can connect the Matias Wireless Aluminum Keyboard with an iPad, iPhone, Android, Mac, and Windows PC via Bluetooth. Wireless Typing For a wireless keyboard, the Matias FK418BTB has a 5 to 12 times larger battery that can last up to a year on a single charge. You'll feel as if you're typing on a wired keyboard with the Matias Wireless Aluminum Keyboard. Technical Specs: Operating System: Mac OS Weight: 1.39 Ibs Dimensions: 17.52 x 4.72 x 0.67 inches Voltage: 5 Volts Batteries: 2 Lithium Ion Batteries Required Features: Pair Up To 4 Devices You can pair up to 4 Bluetooth devices on the Matias FK418BTB, easily switching between them with the press of a button. The keyboard adjusts its layout to match each device (as you switch) — whether it’s Mac, iPad, Windows, Android, etc. Legacy Mac Support The Matias FK418BTB is compatible with Mac OS X all the back to version 10.6.8 (Snow Leopard). This can be a lifesaver if you are running legacy software on older systems. Tactile Typing The Matias keyboard provides a smooth and responsive typing experience, with a satisfying 2 mm key click. It was engineered for comfort, style, and speed - no sacrifice to any of the three.