Features Multi-Function: Experience versatile functionality with default copy and paste, shortcut keys, cut, cancel, select all, play, pause, volume, forward, and backward functions for an enhanced gaming and productivity experience. Easy to Program: Effortlessly customize your commands with understandable English translation in the programming application, and even simulate mouse actions for a seamless and personalized setup. Instruction Saving: Save your programmed instructions on the device, eliminating the need to reset when changing computers, providing a hassle-free and efficient user experience. Easy Operation: Equipped with a USB cable and caliper, the 2 key keyboard ensures convenient programming and operation, making it practical and user-friendly. Good Texture: Featuring fine workmanship and smooth appearance with rounded corners, the keyboard offers a safe, reliable, and comfortable user experience. Specification: Item Type: 2 Key Keyboard Switch: Red Switch Key Position: 2 Keys Package List: 1 x Keyboard 1 x USB Cable 1 x Caliper 1 x User Manual Note: betweendiv>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.between/div> Package List 1 x Keyboard 1 x USB Cable 1 x Caliper 1 x User Manual