Music Controls, Programmable keys, Palm Rest, Abrasion resistant key print, 10-Key Number pad
Deep profile, On/Off power switch, Caps lock indicator light, Battery indicator light, 2 AA batteries (Alkaline Battery)
36 months (Battery life may vary based on use and computing conditions.)
3 (Left/Right-click, Middle click)
On/Off power button, 1 AA battery (Alkaline Battery)
18 months (Battery life may vary based on use and computing conditions.)