Ugreen Wireless Keyboard Bluetooth 5.4 2.4ghz Rechargeable.

Connectivity: Features dual-mode connection via Bluetooth 5.0 and a 2.4GHz USB receiver, allowing it to connect to up to 4 devices simultaneously. Design: An ultra-slim, compact 99-key layout that includes a numeric keypad and scissor-switch keys for quiet, comfortable typing. Power: Equipped with a built-in 400 mAh rechargeable lithium battery that provides up to 3 months of usage on a single charge. Compatibility: Works with Windows, macOS, iOS, Android, Linux, and ChromeOS.