High-Capacity Battery: Hexgears E4 Pro wireless keyboard built-in 4600mAh high capacity battery to meet your long time gaming experience. Press “FN+|”, the keyboard's 1-8 number keys will light up for checking the remaining power of the keyboard. This keyboard also has the function of basic mouse control, which is very convenient.If you have any questions about our mechanical keyboard, please feel free to contact us!. 99 Keys Full Size Keyboard: The 99 Keys anti-ghosting gaming mechanical keyboard.The keyboard is made of PBT injection material keycaps, non-slip, wear-resistant, non-greasy, delicate touch. E4 Pro wireless keyboard adopt ergonomic design design, the bottom of the keyboard has 2 foldable two-stage stand, also comes with a hook magnetic hand rest, thus helping to prevent carpal tunnel syndrome. RGB Backlit Gaming Keyboard: This wireless RGB backlit mechanical gaming keyboard features multiple backlight cycling effects. 18 backlight cycling effects and 8 backlight colors switch. You can also adjust the backlight brightness and backlight change rate. Light up your keyboard and bring a good gaming atmosphere. Multiple FN key combinations for quick setup and improve your work efficiency. Hot-Swappable Kailh Box Switches: This mechanical gaming keyboard uses kailh box switches with precision technology, responsive and no delay, bringing you a comfortable key touch. Dust and moisture resistant, with up to 100 million clicks of key life. Supporting hot-swappable technology, you can customize your keyboard by changing different switches according to your style.Keyboard PCB supports 3-pin/5-pin switches. Three Modes Connection Mechanical Keyboard: Hexgears E4 Pro gaming keyboard supports bluetooth, 2.4G wireless, Type-C wired connection mode. Bluetooth signal stability, can connect 3 bluetooth devices; Dual-head 2.4G receiver, stable transmission, wide compatibility; You can also use Type-C wired mode, USB plug-and-play, stable connection. Suitable for playing games and working. Precise and Smooth Typing Experience:Hexgears E4 Pro mechanical keyboard has excellent accuracy, which can ensure that every key is accurately recognized and recorded while you type at an extremely fast speed.There's no need to worry about duplicate or missing keystrokes, which eliminates the need for tedious corrections. Whether you need to work efficiently or pursue a fast typing experience, the E4 Pro keyboard will meet your needs.