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 Keyboard Material: Metal, Plastic, Electronics Applicable Model: Universal Key: 83 Keys Interface: Type C Plug and Play: Yes Connection with Computer: Wireless Support Multimedia Keys: Yes Shortcut Key: Yes Proof Function: Water Resisting Key Technology: Mechanical Switch Backlight Function: Backlight Supported Ergonomics Supported: Yes Operating Current when Backlight is On: 150mA Operating Current when Backlight is Off: 8mA Sleep Current in BT Mode: 0.6mA Key Collision Free: Full Key Collision Free in Wired Connection, 6 Keys Collision Free in BT Mode. Operating Voltage: 3.7V Working Mode: Wired/Wireless/BT Sleep Time: Automatically Enter the Sleep State 2 Minutes After No Handling. Press Any Key to Wake Up Operating System: Suitable for Win 2000 or Higher, For OS X Laptop Operating Systems, for Win 8 or Higher Battery Type: Inbuilt 2000mAh Li Battery (Battery Included). Package List: 1 x Mechanical Keyboard1 x Charging Cable2 x Switch1 x Keycap Puller1 x User Manual