Logitech 920-012926 MK345 Wireless Keyboard & Mouse Combo

Keyboard
Spill-resistant design
Adjustable height -tilt legs
Special Keys: Music Controls
Palm Rest
10-Key Number pad
Key type: Deep profile
On/Off power switch
2 AAA batteries
Battery life: 36 months ?
Mouse
Sensor technology: Smooth Optical Tracking
Number of Buttons: 3 (Left/Right-click, Middle click)
Scrolling: line-by-line
Scroll Wheel: Yes, 2D, mechanical
Connect/Power: On/Off power button
1 AA battery
Battery life: 18 months