Multisync technology makes it easy for simple one-touch switching between four devices. Just Pair your devices and start toggling. Bluetooth 3.0 technology means you dont have to take up valuable USB ports with wireless receivers. Setup is easy, and no installation or drivers are required. All of the familiar Mac keys and shortcuts are here. It features a full numeric keypad so you can easily enter Numbers. Arrow keys are convenient for scrolling through documents and playing games. Effortlessly adjust screen brightness, volume, play and pause with single touch focus keys.