HighlightsPROGRAMMABLE KEYPAD All keys can be programmable. You can set all the key functions of standard Windows keyboard, a key to achieve the complex combination of shortcut keys. The custom programmable key functions include regular 104 buttons, 8 web naSTORAGE FUNCTION OneHanded Mechanical keyboard with storage function, set up on the Windows system can be used on systems that support usb protocol such as for Linux, for MacOS, etc. After keyboard keys be set up, it can be stored in keyboard, andMINI PORTABLE KEYPAD 102x57x38mm4.02x2.24x1.50in, mini size and portable, effectively saves desktop space. Detachable USB cable. You can connect the small keypad plug and play and a another keyboard with the same computer at the same time, they wKNOB FUNCTION The knob can be set to zoom in and out, cut the song on a song, the next volume plus, volume reduction, pause, play and other functions, the One Handed Macro Mechanical Keyboard is simple operation, convenient and easy to carry.WIDE APPLICATION Mini keypad suitable for office, games, music, media, industrial control, laboratory, production line testing and other fields, a good helper for so many other types of users including designers and video editors.OverviewSpecificationItem Type Mini KeypadAcrylic, PCBDC 5V1A1050102x57x38mm4.02x2.24x1.50inSuitable for office, game, music, media, industrial control, laboratory, production line testing and other fieldsFor Windows, for VISTA, for Linux, for Macos Button Life Up to 50 million timesOne Handed Mechanical Gaming KeyboardIt can be defined as multimedia key mode to adjust the volume of the computer plus or minus, and press in the middle for mute, also it can be defined as normal key mode, which means it can be defined as any key of the computer keyboard.KEYS FUNCTION Each of the six keys can be defined as any individual key on a computer keyboard, or any combination of keys.