The Lenovo Professional Wireless Rechargeable Combo 4X31R64342 provides a coordinated keyboard and mouse solution designed for a clean, cable-free workspace. You can connect these peripherals to your computer using either a 2.4 GHz USB receiver or Bluetooth, offering flexibility depending on your available ports. Both devices utilize rechargeable batteries, and the keyboard includes a one-meter USB-A to USB-C cable to handle power needs without the constant requirement for disposable cells. The keyboard features a slim profile measuring 437.4 x 128.8 x 14.8 mm and employs membrane scissor switches for a tactile yet quiet typing experience. Its layout supports both English and Russian characters and includes dedicated multimedia keys, Fn combinations, and a specific Microsoft Copilot key for quick access to AI assistance. Complementing the keyboard is a right-handed optical mouse crafted with bio-rubber for a comfortable grip. It features eight buttons and a scroll wheel, with an adjustable sensor that lets you switch between 800, 1600, and 2400 DPI, reaching a maximum of 4000 DPI for precise cursor control. Measuring 111.29 x 62.23 x 36.06 mm, this mouse is sized to fit naturally in your hand during long working hours.