WiFi range (in meters): 10 meters Keyboard Spill-resistant design Familiar key shape and feel, whisper-quiet Adjustable Height: 3 tilt positions (natural, 4°, and 8°) Special Keys: Music Controls, Programmable keys Palm Rest Abrasion resistant key print 10-Key Number pad Key type: Deep profile On/Off power switch Caps lock indicator light Battery indicator light 2 AA batteries (Alkaline Battery) Battery: 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, optical Connect/Power: On/Off power button 1 AA battery (Alkaline Battery) Battery: 18 months | 
