Features 1Wireless and Wired Connection: This is a customized Bluetooth wireless and wired dual mode keypad, with a Type C to USB interface, plug and play, no drive required. 2Convenient Shortcut Keys: All the key functions on the standard for Windows keyboard can be set, and the complicated shortcut key combination function can be realized with one key, with storage function. 3Multi Layer Function: There are three layers of functions. One key can be set three different shortcut keys. After setting on for Windows system, it can be used on systems that support USB protocol, such as for Linux, for OS X, etc. 4Mini and Portable: The mechanical game keyboard is simple to operate and can be connected to multiple keyboards. It is compact and easy to carry, with a long lifetime. 5Multi Purpose: Programmable keyboard is applicable to office, drawing design, games, music, multimedia, industrial control, laboratory, production line testing and other fields. Specification Item Type: Programmable Keyboard Material: Silica Gel, Acrylic Purpose: Suitable for recording studio, office, drawing design, game, music, multimedia, industrial control, laboratory, production line testing and other fields Connection Mode: Bluetooth Wireless, USB Wired Connection System Support: for Windows, for Vista, for Linux, for OS X Key Life: Up To 50 Million Times Size: Approx. 100 x 34 x 33mm / 3.94 x 1.34 x 1.3in Battery Type: 600mAh Lithium Battery x 1 (Built in) Charging Voltage: DC5V, 1A Working Temperature: - 10-50 Package List 1 x Keyboard 1 x USB Cable 4 x Pad Note 1. This software can only be run on for Windows system temporarily, try to download it on the PC side of the computer, the setting software does not need to be installed, it can be run directly after opening it. After setting, it will be automatically stored on the link disk, and then plugged into systems such as for Linux and for OS X that support the USB protocol for use (the first time you run it, pay attention to the release of antivirus software and set it as a trusted file)! 2. The software cannot be downloaded, please consult the customer service!