Part number:Health Geary2gku3ho90-12 Package Dimensions:15 x 10 x 4 cm Colour:Black Item Package Quantity:1 Specification: Item Type: Macro Mechanical Keyboard Material: Acrylic, PCB Size: approx. 132 x 77 x 38mm/5.2 x 3 x 1.5in Button life: up to 50 million times Type: Dustproof Green Shaft Key Quantity : 12 keys Current and voltage: DC 5V/1A Working temperature: -10-50 System support: for Windows, for VISTA, for Linux, for OS X. How to use: 1. Small keyboard, open the custom software on the computer. 2. In the custom software, click the key setting area or knob setting area (yellow area), and then click the key1-key12 key or any key of knob 1 or knob 2 ( green area) to configure; If selected, it will appear in red. 3. Click the function key corresponding to the simulated keyboard in the custom software, click download, which will prompt the download success, the custom keyboard can be used. Packing List: 1 * Keyboard 1 * USB Cable Note: This software can only run temporarily for Windows system, please try download it on the PC side of the computer, no need to install the configuration software, it can be run directly after opening, and it will be automatically stored in the chain disk after configuration, and then connect to the USB protocol that supports USB protocol. Use it for Linux, for OS X and other systems (the first time you run it, pay attention to the publication of antivirus software and set it as a trusted file)! About this item [Multifunction]: The mini keyboard with multiple functions, you can set all the key functions on the Windows keyboard, and perform complicated and complex shortcut keys with one key [Configurable Knob]: The knob can also be set, with functions such as playing the previous song, next song, volume up, volume down, pause, play and other functions [Memory function]: The keyboard has a storage function, which can be used in systems that support the USB protocol; After setting it up on Windows system [Portable and easy to use]: Type-C to USB interface, no need for drivers, plug and play, no conflict between the computer and multiple keyboards, convenient and easy to carry [Give you convenience]: This is a 12-key programmable keyboard with adjustment knob, you can set the shortcut keys to reduce the cumbersome process [Multifunction]: The mini keyboard with multiple functions, you can set all the key functions on the Windows keyboard, and perform complicated and complex shortcut keys with one key [Configurable Knob]: The knob can also be set, with functions such as playing the previous song, next song, volume up, volume down, pause, play and other functions [Memory function]: The keyboard has a storage function, which can be used in systems that support the USB protocol; After setting it up on Windows system [Portable and easy to use]: Type-C to USB interface, no need for drivers, plug and play, no conflict between the computer and multiple keyboards, convenient and easy to carry [Give you convenience]: This is a 12-key programmable keyboard with adjustment knob, you can set the shortcut keys to reduce the cumbersome process