Logitech MKMK270 Wireless Keyboard & Mouse Sets 1) The MK270 Wireless Keyboard & Mouse Sets offer the convenience and comfort of a full-size keyboard and curved, compact mouse. Media keys, a numeric keypad, and precise cursor control make for a smoother office. 2) Technical Specifications Wireless Range: 10 meters Keypad Spill-resistant design Height adjustable keypad 10-key numeric keypad Key type: deep profile Caps lock status indicator 3) Power on/off button 2 AAA batteries (alkaline) Battery life: 36 months / approx. 2 million keystrokes. 4) Mouse Sensor technology: Smooth optical tracking Number of Keys: 3 (Left/Right, Center) Scrolling: Line-by-line Scroll Wheel: Yes, 2D, Optical Connectivity/Power: Power on/off button 1 AA Battery (Alkaline) 5) Battery Life: 12 months 6) Compatibility System Requirements Available USB ports ChromeOS Windows® 10,11 or higher 7) Product List Keyboard with 2 AAA Batteries Mouse with 1 AA Batteries USB Receiver User documentation