Feature:1. Triple Modes: This mechanical keyboard can be connected to your devices with the included Type C cable, also supports wireless and BT connection.2. Knob Control: This wireless keyboard is designed with knob at both sides, allowing you to control the volume and brightness. Lever is used to adjust backlit mode.3. Round Keycaps: This 83 key keyboard adopts round keycaps in retro style, providing more comfortable typing experience.4. Blue Switch: This computer keyboard adopts mechanical blue switch, sensitive control and crisp sound, also features water proof and ergonomic design.5. Widely Compatible: This gaming keyboard is suitable for Android, for Win 10, for OS X Laptop. Ideal for phone, tablet and laptop.Specification:Item Type: Mechanical KeyboardMaterial: Metal, Plastic, ElectronicsApplicable Model: UniversalKey: 83 KeysInterface: Type CPlug and Play: YesConnection with Computer: WirelessSupport Multimedia Keys: YesShortcut Key: YesProof Function: Water ResistingKey Technology: Mechanical SwitchBacklight Function: Backlight SupportedErgonomics Supported: YesOperating Current when Backlight is On: 150mAOperating Current when Backlight is Off: 8mASleep Current in BT Mode: 0.6mAKey Collision Free: Full Key Collision Free in Wired Connection, 6 Keys Collision Free in BT Mode.Operating Voltage: 3.7VWorking Mode: Wired or Wireless or BTSleep Time: Automatically Enter the Sleep State 2 Minutes After No Handling. Press Any Key to Wake UpOperating System: Suitable for Win 2000 or Higher, For OS X Laptop Operating Systems, for Win 8 or HigherBattery Type: Inbuilt 2000mAh Li Battery (Battery Included).Package List:1 xMechanical Keyboard1 x Charging Cable2 x Switch1 x Keycap Puller1 x User Manual