Stylish K400 Wireless Touch Keyboard with comfortable, low-profile keys provides long-range, reliable wireless control of your laptop. With a wireless range of up to 33 ft (10 m), you can do what you need to do, all from the comfort of your couch. Includes an integrated large 3.5" built-in touchpad. USB connection via the tiny Unifying ™ receiver. Wired / Wireless: Wireless; Maximum Wireless Range: 33 ft; Connector / Port / Interface: USB; Keyboard Design: Standard.