Feature: 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. Specification: Item Type: 2 Key Keyboard Switch: Red Switch Key Position: 2 Keys. Package List: 1 x Keyboard1 x USB Cable1 x Caliper1 x User Manual Note: 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.