Logitech MK220 Compact Wireless Keyboard Mouse Combo, HR

Logitech MK220, Keyboard Mouse Combo, Wireless, HR – Wireless range: 10 meters Keyboard: 10-Key Number pad, Music Controls Up to 5 million keystrokes Key type: Deep-profile Spill-resistant 2x AAA batteries Mouse: 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