Rechargeable Keyboard and MouseThe wireless keyboard is made of aluminum alloy brushed panel, which is sturdy and durable. It can be waterproof, and the keyboard builts-in 3000mAh battery. The mouse builts-in 800mAh battery ,eliminates the trouble of frequently changing batteries. No operation automatically sleeps within 5 minutes, any key wakes up 2.4G Wireless Transmission2.4G wireless technology enables the keyboard to achieve long-range wireless control. Plug & Play, keyboard and mouse share an Intelligent Nano Receiver, convenient and fast. The keyboard features a streamlined layout that is ergonomically designed for gaming or office or home use. LED Rainbow BacklightThe mechanical feel keyboard with colorful backlight effect is an excellent visual experience in night operation, pressing FN+DEL to switc three backlight states (normally bright-breath-off), The keyboard can adjust backlight brightness and breathing frequency. Fashionable and practical style design