Convenient switchable keyboard allows you to change quickly between wired and Bluetooth connectivity, making it easy to work with a laptop, a tablet, or even a smartphone. The keyboard is full-sized and includes a numeric keypad, providing a professional typing experience. The keyboard can be powered using either a detachable wired connection through a USB port on your laptop, or with batteries when its in Bluetooth mode. Installation is simple and easy, so you can start typing in no time at all. Compatible with Windows. Uses Bluetooth 3.0. Wired/Wireless: Wired Wireless Maximum Wireless Range: 30 ft Connector/Port/Interface: Micro USB For Device Type: PC Laptop Tablet Smartphone.