Mk550 Wireless Wave Keyboard + Mouse Combo, 2.4 Ghz Frequency/30 Ft Wireless Range, Black

Wireless Wave Keyboard and Mouse Combo is all about comfort and productivity. Your hands get cradled in comfort by the Comfort Wave design of the keyboard. Laser mouse has contoured sides and soft rubber grips. Both are so energy efficient you just might forget they use batteries at all. The Unifying™ receiver connects both the keyboard and mouse, with long-range advanced 2.4 GHz wireless connectivity.
Package Includes: Logitech® Unifying Receiver; (4) AA Alkaline Batteries; User Documentation