Logitech Mk270 Wireless Keyboard and Mouse Combo

Wireless range: 33 ft (10 m) Keyboard Spill-resistant design Adjustable keyboard height 10-Key Number pad Key type: deep profile Caps lock indicator light On/Off power switch 2 AAA batteries(Alkaline Battery) Battery life: 36 months Sensor technology: Smooth Optical tracking Number of buttons: 3 (Left/Right-click, Middle click) Scrolling: line-by-line Scroll Wheel: Yes, 2D, optical Connect/Power: On/Off power button 1 AA battery(Alkaline Battery) Battery life: 12 months