Features 1,Comfortable Typing Experience: Mechanical computer keyboard features ergonomic design, providing a comfortable typing experience, reducing hand fatigue, and ensuring long lasting comfort during extended use. 2,Multiple Lighting Effects: With multiple adjustable lighting effects, MK108 RGB backlit keyboard creates a fun typing atmosphere, improving work enjoyment and efficiency. 3,Accurate Keystrokes: Equipped with full key anti ghosting technology, mechanical gaming keyboard accurately recognizes each keystroke action, ensuring precise and non error typing. 4,Long Battery Life: Built with a 3000mAh large capacity battery, offers long lasting battery life, eliminating the need for frequent recharging and allowing for continuous use. 5,Space Saving Design: Featuring a three way cable management design, wireless gaming keyboard keeps your desktop tidy and organized, effectively saving space and enhancing work efficiency. Specification Item Type: 108 Key Mechanical Keyboard Switch Type: Red Switch Connection Type: Bluetooth, 2.4G, and Wired Battery Type: Li ion Battery Battery Capacity: 3000mAh (Included) FNandF1 or F2: Screen Brightness- or ( for WIN or for OS X)Screen Brightnessand FNandF3: ( for WIN)Task View, ( for OS X)Mission Control FNandF4: ( for WIN)File Explorer, (for OS X)Console FNandF5 or F6: ( for WIN)Mail or Home, (for OS X)N or A FNandF7 or F8 or F9: ( for WIN or for OS X)Previous Track, Play or Pause, Next Track FNandF10-F12: ( for WIN or for OS X) No function FNandESC: Reset Default Setting (Press for 3 Seconds) FNandBackspace: Check Battery Level (Number 1 to 0 keys light up to show battery level in percentage, e.g. 1 and 2 light up means 20 percent battery, and so on. (Red below 30 percent , Yellow below 50 percent , Green above 50 percent ) FNand1 or 2 or 3 or 4 or 5: Bluetooth 1, Bluetooth 2, Bluetooth 3, 2.4G, Wired FNandPGUP: Change Backlight Effect (Customized, Music Rhythm, Shadow Mode set in driver) FNandDEL: Change Backlight Effect Direction FNandPGDN: Adjust Backlight Color (Constant Light mode cannot adjust backlight speed Spectrum Cycle mode cannot adjust backlight color) FNand ↑ or ↓ or ← or →: Backlight Brightness and Backlight Speed FNandEND: Turn off or on Lights FNandA: Switch to for WIN System FNandS: Switch to for OS X System FNandWIN_L: Lock for WIN Key ( for WIN System Only) Package List 1 x Keyboard 1 x Data Cable 1 x Keycap Puller Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.