1. MULTI FUNCTION: The default copy and paste function, you can also use shortcut keys, cut, cancel, select all, play, pause, volume, forward and backward functions. 2. EASY TO PROGRAM: The programming application has understandable English translation. In addition to the standard macro, it can also simulate the mouse. 3. INSTRUCTION SAVING: Support to save your instructions on the device. After programming, you do not need to reset when changing the computer. 4. EASY OPERATION: The set is equipped with USB cable and caliper to ensure that the 2 key keyboard is easy to operate and program, convenient and practical. 5. GOOD TEXTURE: With fine workmanship, the keyboard has a smooth appearance, and its rounded corners make it more safe and reliable to use. Spec: Item Type: 2 Key Keyboard Switch: Red Switch Key Position: 2 Keys How to Use: Use directly. PackageList: 1 x Keyboard 1 x USB Cable 1 x Caliper 1 x User Manual Notice: If you want to use it on the for iOS or for LINUX system, you need to set it in advance on the for WINDOWS system.Premium Craftsmanship: Boasting a smooth appearance and fine workmanship, our keyboard exudes quality and elegance. Its rounded corners not only add to its aesthetic appeal but also enhance safety and reliability during use. Effortless Operation: Our keyboard Equipped with a USB cable and caliper, it ensures easy operation and programming. The practical design guarantees a convenient setup process, so you can start using your keyboard right away. Convenient Instruction Storage: With support for saving instructions on the device, our keyboard eliminates the hassle of resetting when switching computers. Once you've programmed the keys to your liking, you can rest assured that your instructions will be readily available whenever and wherever you need them. Simplified Programming: Programming our keyboard is a breeze with the user-friendly application. It provides clear English translations, allowing for easy customization of macros. In addition to standard macros, this keyboard also offers mouse simulation, adding an extra level of versatility to your programming experience. Versatile Functionality: Our 2-key keyboard is more than just a copy and paste tool—it offers a multitude of functions to enhance your productivity. With default copy and paste capabilities, as well as additional shortcut keys for cut, cancel, select all, play, pause, volume, forward, and backward functions.