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. Triple Modes: This mechanical keyboard can be connected to your devices with the included Type C cable, also supports wireless and BT connection. Blue Switch: This computer keyboard adopts mechanical blue switch, sensitive control and crisp sound, also features waterproof and ergonomic design. Round Keycaps: This 83 key keyboard adopts round keycaps in retro style, providing more comfortable typing experience. Widely Compatible: This gaming keyboard is suitable for Android, for Win 10, for IOS, for OS X Laptop. Ideal for phone, tablet and laptop.