DELL KM7120W / Multi-Device Wireless / 580-AIWS Grey

Quick overview from the supplier:

Wireless Keyboard & Mouse Dell Multi-Device KM7120W, Multimedia Keys, 2.4Ghz/BT, Russian, Titan Grey --- https://www.delltechnologies.com/asset/en-us/products/electronics-and-accessories/technical-support/dell_multi_device_wireless_keyboard_and_mouse_combo_km7120w_data_sheet.pdf