Lenovo Essential Wireless Combo Gen 2 (4X31N50745) is an eco-friendly, wireless keyboard and mouse set designed for office and home productivity, Connectivity: 2.4 GHz wireless via a single USB-A nano receiver. Design/Material: Built with 65% post-consumer recycled plastic (PCR). Keyboard Layout: Low-profile 2.5-zone layout with silent, responsive island keys. Keyboard Durability: Spill-resistant design, adjustable tilt legs, and up to 10 million character lifecycle. Keyboard Security: AES-128 encryption. Keyboard Controls: One-touch dedicated media controls (F1–F12) and LED indicators (Low-battery, FnLock, NumLock). Mouse: Full-size ambidextrous shape, optical sensor, 1600 DPI, and 3 buttons (left, right, scroll) with 3 million click life. Battery Life: Up to 15 months for the keyboard (1x AAA) and up to 18 months for the mouse (1x AA). Warranty: 3-year limited hardware warranty
