Features Multi-function: Enjoy default copy and paste function along with other shortcut keys for cut, cancel, select all, play, pause, volume control, and forward and backward functions, enhancing your gaming experience. Easy to program: The programming application features easy-to-understand English translation, allowing you to create macros and even simulate the mouse for seamless customization. Instruction saving: Save your instructions on the device, eliminating the need for resetting when changing computers, providing convenience and efficiency. Easy operation: Equipped with a USB cable and caliper, the 2-key keyboard is easy to operate and program, ensu practicality and ease of use. Good texture: With fine workmanship, the keyboard boasts a appearance and rounded corners for a safe and reliable 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 Amplifier Tone Board