Note: Please download the latest version of the keyboard configuration software according to the website: (If you have any problems, please tell us in time)Windows--https://product_manual.s3.us-east-1.aws.com/MYKB.zip . Mac OS--https://product_manual.s3.us-east-1.aws.com/MYKB_For_MacOS.zip . ?One Handed Mini Keyboard?2.7" x 2.5" x 1.2" ultra-small size. Detachable USB cable. You can connect the keypad (plug and play) and a 104-key keyboard with the same computer at the same time, they will not interfere with each other. Small and portable mini keyboard is perfect for making work faster, plays games smoothly etc. you can carry it with you, effectively saving desktop space. If you are not the easy to set up, please just watch videos and you will be fine. ?RGB Backlight Keyboard?RGB backlight can be customized to the player's desired color. The backlight brightness can be adjusted/turned off. Dynamic effects can be summarized into 8, each dynamic light effect can be adjusted to 3 different speeds; In addition, you can adjust 30 levels of brightness, 32 levels of saturation, and 32 different colors (including 32 static monochrome and 32 static color) in the light effect. (NOTE: there is no support for using HUB). ?4-layer Custom Configuration?Built-in MCU that stores keyboard keys in the keyboard's MCU after they have been set up, without having to reset the keyboard or even change computers. Four layers of configurations can be saved to handle multiple use cases. Not only for gamers, but also for many other types of users, including designers and video editors. ?DIY Keyboard with Macro Keys?There are 16 buttons for advanced macro functions. Macro functions can be used in tandem and can support up to 349 key commands. Delayed commands can be added to meet various complex use cases such as: Office, CAD/Ae/Pr/Ps shortcuts, various user accounts and passwords, game tricks, basic codes for programmers. For example, the Set button will trigger a series of actions such as "Ctrl + A 0.5s Ctrl + C 0.5s Ctrl + V", etc. ?Wide Applications?This one handed keyboard is a huge time saver, you can do programming for a living, for office works, for play gaming, for music, media, industrial control, laboratory, production line testing and other fields. It is easy and quick way to control scenes without needing to move a mouse around. You can use a lot of keyboard shortcuts all day, and you can program each key to be 1 key or a macro of key combinations. ?Macro Keyboard Programmable 9 Keys?All keys are programmable. Custom programmable key functions include regular 127 buttons, Web navigation buttons, multimedia shortcuts, keyboard lock, Windows lock, etc. Each button can be set to any one of these buttons. You can connect the keyboard (plug and play) and multiple keyboards to the same computer at the same time and they will not interfere with each other.