This Is a Logitech Mk250 Compact Wireless Mouse and Keyboard Combo.

It uses Bluetooth 4.0 wireless technology for connectivity, eliminating the need for a USB dongle. The keyboard is full-size with a numeric keypad and features a spill-resistant design. The mouse is contoured and ambidextrous, suitable for both left and right-handed users. The combo is compatible with Windows, macOS, and ChromeOS. It has an energy-efficient design, with the keyboard battery lasting up to 12 months.