Features 1Multiple Function: Default copy and paste function, can also set shortcut key, cut, undo, redo, select all, play, pause, volume, switch song, forward, backward, customize scripts, etc. 2Programming: The computer single keyboard is programmable design, which is simple and convenient in operation, and support for standard macros, analog mice, and other functions. 3Instruction Save: The instruction is saved on the device, no need to reset it when replacing the computer after programming. If it is for OS X or for Linux system, it needs to be pre set for Windows. 4Durable ABS Material: Made from excellent ABS material, this USB keypad is sturdy and durable, which can withstand daily use and provides a reliable and long lasting performance. 5Compact Size: With compact size and portable design, this USB custom keypad is designed to fit seamlessly into your work space, it will not take up too much space on your desk. Specification Item Type: USB Wired KeypadMaterial: ABSSwitch: Blue SwitchKey: 1 Key Package List 1 x Keyboard1 x USB Data Cable1 x Accessory1 x User Manual