?Retro design?: The appearance is similar to that of a typewriter in the 1940s. The mechanical keys click and let you feel the charm of the typewriter. ?Ergonomic design?:Based on ergonomics, blue shaft and round keycaps are used, easy to click, and excellent input and response capabilities. Even if you use it for a long time, you won't feel tired. ?Anti-collision, high-definition printing?:83-key anti-collision button layout, laser engraving is not easy to fade, you can press multiple buttons at the same time, fast response, and enjoy a better gaming experience and work. ?Wireless and wide compatibility?: It can support 3 devices at the same time via Bluetooth wireless connection. Wide compatibility, can be used on iOS, Android, Windows and other devices. Supported operating systems: WIN2000 / WINXP / VISTA / WIN7 / WIN8 / WIN10 / LINUX / ANDROID / ISO / Mac ?LED Backlight?: Equipped with white backlight, you can accurately view the key position even in a dark place, a