Product Description More Product Details Tri-mode Connection Support BT 3.0/5.0, 2.4GHZ wireless and USB-C wired connection. Users can quickly switch between connection modes using the mode switch on the side. 8000mAh Battery The large battery capacity increases the battery life in wireless mode. Please note that don’t use a fast charging cable to charge the keyboard. PBT Keycaps Double shot PBT keycaps, made from two colors material molded into each others, make the keycaps characters maintain the vibrance and saturation. Adjustable Keyboard Stand The keyboard stand has 2 adjustable height levels. Users can adjust the keyboard tilt according to their own requirements. Partial FN+ Shortcut Key Functions Introduction FN + Scroll = PRTSCFN + DEL = INSFN + Home = ENDFN + ESC : Press and hold for 4-5 seconds until the keyboard backlight flashes to restore factory settingsFN + WIN : Lock/unlock windows key (WIN key cannot be used when locked)FN + 1 = BT device 1# | FN + 2 = BT device 2# | FN + 3 = BT device 3# Supports simultaneous connection of 3 devices in BT mode, and can switch devices via shortcut keys FN + W = Windows system | FN + E = Mac system | FN + Q = Android system | FN + R = IOS system In order to use some shortcut key functions normally, users can use shortcut keys to switch the keyboard to the same system mode as your device. The keyboard shortcut functions are different in different systems. For details, please refer to the instructions included in our package. Multi-Device Connection: AULA F99 Pro wireless mechanical keyboard provides three connection methods, including BT5.0, 2.4GHz wireless mode, and USB wired mode. It can be connected to up to five devices at the same time, and switch between them easily by FN and key combination keys and side button. No limits about your keyboard connection to meet the needs of work, gaming, and studyMulti-function Control Knob: This AULA 96% wireless gaming keyboard is equipped with functional knob to switch backlit mode or multimedia mode. In backlit mode, you can rotate the knob to adjust the brightness of the lights, and click the knob to switch the lighting effects easily; in multimedia mode, rotate the knob to adjust the volume, and click the knob to play or pause. Long press the knob for about 5 seconds to switch modesHot-swappable Custom Keyboard: The switches and keycaps can be freely replaced(keycap/switch puller are included in the package).This customizable keyboard with hot-swap PCB allows users to replace 3 pins/5 pins switches easily without soldering issue. F99 Pro mechanical keyboards equipped with pre-lubed linear switches, bring smooth typing feeling and pleasant typing sound, provide fast response for exciting gameAdvanced Structure and PCB Single Key Slotting: This computer keyboard features a advanced structure, extended integrated silicone pad, and PCB single key slotting, better optimizes resilience and stability, making the hand feel softer and more elastic. Five layers of filling silencer fills the gap between the PCB, the positioning plate and the shaft,effectively counteracting the cavity noise sound of the shaft hitting the positioning plate, and providing a solid feelMechanical Gaming Keyboard: F99 Pro is a premium mechanical keyboard for both work and game. With 16 RGB lighting effect to adds a great atmosphere to the game room. Keys support macro customization, which allows macro recording and editing, customize key function and 16.8 million light colors, and supports cool music rhythm lighting effects with driver. N-key rollover, keyboard can respond to multiple key presses at the same time, which is helpful in very exciting real-time gamesPBT Keycaps and 8000mAh Battery: 99 keys 96% layout compact keyboard can save more desktop space while keep necessary arrow keys and number area for games and work. The rechargeable keyboard built-in 8000mAh large capcacity battery to provide more power and longer battery life. Double shot PBT keycaps, made from two colors material molded into each others, make the keycaps characters maintain the vibrance and saturation, clear and not fade