Logitech MK-270 Wireless keyboard and mouse combo

Dimensions Keyboard Height: 5.87 in (149 mm) Width: 17.36 in (441 mm) Depth: 0.71 in (18 mm) Weight: 17.57 oz (498 g) Mouse Height: 3.90 in (99 mm) Width: 2.36 in (60 mm) Depth: 1.54 in (39 mm) Weight: 2.65 oz (75.2 g) Nano receiver Height: 0.74 in (18.7 mm) Width: 0.57 in (14.4 mm) Depth: 0.26 in (6.6 mm) Weight: 0.07 oz (2 g) Technical Specifications Wireless range: 33 ft (10 m) 1Wireless range may vary due to environmental and computing conditions. Keyboard Spill-resistant design 2Tested under limited conditions (maximum of 60 ml liquid spillage). Do not immerse the keyboard in liquid. 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 3Keyboard battery life calculation based on an estimated two million keystrokes/year in an office environment. User experience may vary. Mouse battery life may vary based on user and computing conditions. 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 life: 12 months 4