Features Multiple 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. Programming: The computer single keyboard is programmable design, which is simple and convenient in operation, and support for standard macros, analog mice, and other functions. Instruction 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. Durable 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. Compact 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 Keypad Material: ABS Switch: Blue Switch Key: 1 Key Package List:1 x Keyboard 1 x USB Data Cable 1 x Accessory 1 x User Manual Package List 1 x Keyboard 1 x USB Data Cable 1 x Accessory 1 x User Manual