Logitech MKMK245 nano Wireless Keyboard & Mouse Sets Specifications and Details (1)Specifications Keyboard Height: 139 mm Width: 288 mm Depth: 21 mm Weight: 312 grams Mouse Height: 100 mm Width: 60 mm Depth: 32 mm Weight: 53 grams Micro receiver Height: 18.7 mm Width: 14.4 mm Depth: 6.6 mm Weight: 2.0 grams (2)Product List Wireless Keyboard Wireless Mouse Ultra Miniature Plug & Play Receiver Batteries 2 x AAA (keyboard) and 2 x AAA (mouse) User documentation (3) Specifications Wireless Distance (meters): 10 meters Keyboard Features Splash-proof design Height adjustable keypad Key Type: Deep 2 AAA Batteries (Alkaline) Battery: 36 months Mouse Features Touch Technology: Smooth Optical Tracking Number of buttons: 3 (left/right, center) Scrolling: Line by Line Scroll Wheel: Yes, 2D, Optical. Connection/Power: Power on/off button 2 AAA batteries (alkaline) Battery: 12 months (4) Compatibility Windows® 10, 11 or later ChromeOS Linux 2.6 or higher Available USB ports