Logitech MK220 Compact Wireless Keyboard and Mouse Combo for Windows, 2.4 GHz Wireless with Unifying USB-Receiver, 24 Month Battery, Compatible with PC, Laptop - BlackBrand Logitech Manufacturer Logitech Series MK220 Colour Black Item Height 12. 4 Centimeters Item Width 5. 1 Centimeters Product Dimensions 45. 8 x 5. 1 x 12. 4 cm; 480 g Batteries 2 AAA batteries required. Item model number 920 003157 Connectivity Type 2. 4_ghz_radio_frequency Power Source Battery Powered Hardware Platform Wireless Operating System Windows 10, 11 or later, Chrome OS Average Battery Life (in hours) 24 Months Are Batteries Included No