The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Previous page Unlock number keys Simply double tap the Fn key to unlock the number keys. Next page 1 MAIN FEATURES 2 WIRELESS & WIRED 3 KNOB DESIGN 4 NUMBER KEYS 5 CONNECTION STEPS Previous page Supports 3/5 Pins Switch HOT SWAPPABLE Pre-lubed swicthes and stabilizersTop quality class-A TTC socket This custom software can only be used in WINDOWS system, not in MAC OS system. Next page 1 HOT SWAPPABLE 2 BATTERY 3 GASKET KEYBOARD 4 MILK LINEAR SWITCH 5 CUSTOM SOFTWARE Previous page Cherry Profile AL66 is compatible with almost all the MX style keycap sets in different materials and heights. CUSTOM ALU KEYBOARD Premium Design with CNC Aluminium Frame Anodic Oxidation Technology. PACKAGE LIST Keyboard, dust cover, extra keycaps and switches, keycap and switch puller, keyboard cable, manual. Next page TYPING SOUND OF SWITCHES YUNZII Milk Switch Linear switch Pin: 3-Pin Operating Force: 45±10 gf Pre-Travel: 2.0±0.6 mm Total Travel: 4.0 mm Sound Level: Low Suitable For: Gaming/Office Operation Life : 50M Suitable For: Gaming/Office Lubrication: Lubed version The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. RGB / Volume Function Knob Long press for 5s to change RGB/Volume function The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. KEYBOARD INFORMATION Keyboard YUNZII AL66 Hot-swappable support Yes, 3 pin or 5 pin hot swap switches Keys Layout 65%, 66 keys Switch type Milk Switch Backlight & Sidelight RGB on front and side, South facing LED Backlight modes 18 Sidelight modes 4 Connection 2.4G wireless/Bluetooth 5.0 / Wired Battery capacity 4600 mAh Compatible System macOS/Windows/Android/iOS Frame Materials CNC Aluminum Keycap Materials PBT Keycap Profile Cherry profile DIY Software Yes Size 12.76*4.53*1.42in（32.4×11.5×3.6cm） Weight 1.15kg/2.54lb What is the material of the keyboard case ? The keyboard takes CNC Aluminum. What's the knob function? The functional knob is for adjuting the RGB and volume quickly. Press the knob can change RGB or the volume mode. Spin left/right the knob can decrease/increase RGB/volume. What swicthes I can use for this keeb? The keyboard is compatible with almost all the mechanical switches with 3 or 5 pins. How to change the side light? Fn+ Spacebar to change the side light. How to reset the keyboard? Long press FN+Caps Lock for 10 seconds.