How to Use: Game lighting mode and button custom settings: FN+1=Game Mode 1 (FPS) FN+2=Game Mode 2 (CF) FN+3=Game Mode 2 (COD) FN+4=Game Mode 2 (RTS) FN+5=Game Mode 5 (L0L all) FN+6=Game Mode 6 (Car Race) FN+7=Game Mode 7 (NBA) FN+8=Game Mode 8 (L0L simple) FN+9=Custom mode 1 FN+0=Custom mode 2 Specification: Item Type: Mechanical Keyboard Interface Type: USB Keyboard Standard: 104 Keys Wrist Support: Yes Material: Aluminum Alloy, ABS Package List: 1 x Mechanical Keyboard1 x Hand Rest 3 x Screw 1 x Screwdriver 3 x Washer 1 x User ManualDUSTPROOF DESIGN:The dust proof mechanical axes design makes cleaning the keyboard more casual. With a test button life of up to 7000w times, you can use the mechanical keyboard with confidence. MECHANICAL AXIS:The short range mechanical axes, coupled with the floating keycap, makes the whole hand feel more comfortable, and it is more convenient to play games. ERGONOMIC:With ergonomic hand rest design, you will not feel tired after long time use, which will bring you a different use experience and can effectively improve work efficiency. MOBILE PHONE HOLDER:Equipped with a humanized mobile phone holder, you can place the phone in the visible range, and you can enjoy playing video when placed horizontally, allowing you to enjoy the fun of office. ALUMINUM ALLOY PANEL:With aluminum alloy panel, the inner board encapsulation material and the key are sealed and encapsulated, and the circuit design adopts a closed design with life waterproof characteristics.