The UGREEN FUN+ Mechanical Keyboard is a versatile device that offers both Bluetooth 5.0 wireless and USB-C wired connections, making it suitable for a wide range of devices. It features 84 mechanical keys with durable brown switches that have a lifespan of 50 million presses. The keyboard includes a built-in 1800mAh rechargeable battery, providing up to 180 hours of use with the lights off and 15 hours with the lights on. It is compatible with multiple systems, including Windows, macOS, iOS, Android, Linux, and HarmonyOS, making it ideal for work or gaming.