Fangrui Product Details Features: Can Be Customized As Shortcut Key, Multi-media Key, Etc, To Achieve Mouse Function, Keyboard Function, Game Function, String Function And Multimedia Function. The Mechanical Switch Is Triggered By Micro-switch, There Is A Distinct Sense Of Paragraph When Stepping, Crisp Sound. Simple Polka Dot Pattern Not Only Gives Product An Exquisite Appearance, But Also Increases The Friction Between The Product And User, Making It More Stable. The Bottom Is Equipped With Non-slip Pads, No Need To Worry About The Sliding Of The Switch Caused By Slightly Larger Tread Force. This Product Provides Key Definition Setting Software Based On Windows System, Which Can Be Used In Various Systems After Setting.(if Your Computer System Is Unux Or Formac, You Need To Modify The Key Definition In Windows, Then Plug The Switch Into The Linux Or Mac) Wide Application, You Can Use It When Playing Gaming, Working, Controlling Machine, Testing Machine, Testing Piano Keyboard, And Quickly Storing Images. Specification: Model