Logitech Combo MK540 (L920-008686)

WiFi range (in meters): 10m Spill-resistant design 4Tested under limited conditions 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 Key type: Deep profile On/Off power switch Caps lock indicator light Battery indicator light 2 AA batteries (Alkaline Battery) 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 6Battery life may vary based on use and computing conditions. Optional software Keyboard Height: 193.5 mm x 457.3 mm x 24 mm Weight: 805 g Mouse Height: 61.8 mm x 39.2 mm x 11.5 mm Weight: 73.5 g