Breathing/always on lighting effects can be switched. Supports one-click turning off lighting effects and freely adjusting brightness Keycap center curve design increases contact area. Keystrokes are precise and comfortable, smooth The keys rebound quickly, simulating the mechanical feel experience. Both gaming and home use can enjoy the joy Using UV coating printing, the characters are clear and obvious, not easy to fade away after long-term use Use the Fn key to use the multimedia combination function, both work and entertainment Using a new bracket design, the keyboard fits the curvature of the palm, still comfortable for long-term use The cable length is about 1.5m, allowing you to place it as you like USB interface compatible with most devices Compatible with desktop, Macbook, MateBook, iPad and other deviceslt supports mainstream operating systems such as Windows, MacOS, and Linux Specifications: Model: KB21 Material: ABS Operating voltage: 4.5V~5.5V Operating current: ≤300mA IC chip: ZH098 OTP Number of key presses: Lifespan up to 3 million times Connection method: wired USB-A keyboard type: Membrane keypads LED mode: always on/breathing