Features: 1.Customized Knobs: The keyboard is designed with knobs, and the knobs can be pressed as a custom button, so users can set the most suitable shortcut keys according to their own habits and needs. 2.Red Switch: Mechanical keyboard adopts red switch mechanical keyboard, ergonomic design, which makes the keyboard key strength and stroke are very scientific, a light press can complete the operation. 3.Improve Work Efficiency: By customizing the shortcut keys, users can complete multiple complex operations in a short period of time, which not only saves time, but also reduces the occurrence of errors. 4.Support OS: Custom keyboard can be used for multiple operating systems, for Windows, for vista, for linux, for OS X. 5.Plug and Play: One handed macro keyboard is plug and play, no driver required, acrylic material, durable and can be used for a long time. specification:Item Type: Macro Keyboard Material: Acrylic Connection: USB Wired Key Type: Red Switch Mechanical Keyboard (Knob Can Be Pressed as a Custom Key) Support OS: For Windows, for vista, for linux, for OS X PackageList: 1 x Keyboard 1 x Data Cable