Logitech MK220 Wireless Keyboard and Mouse Combo

Logitech MK220 Wireless Keyboard and Mouse Combo: Specifications: - Wireless range:10 meter - 10-Key Number pad - Music Controls - Up to 5 million keystrokes (excludes number lock key) - Key type: Deep-profile - Spill-resistant Tested under limited conditions (maximum of 60 ml liquid spillage). Do not immerse the keyboard in liquid. - 2 AAA batteries (Alkaline Batteries) - Sensor Technology: Smooth Optical Tracking - Number of Buttons: 3 (Left/Right-click, Middle click) - Scrolling: line-by-line - Scroll Wheel: Yes, optical - 2 AA batteries (Alkaline batteries)