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 . ?Blue Backlight?Ice blue backlight can be customized to the player's modes, supports 4 kinds of cool lighting effects. The backlight brightness can be adjusted/turned off. Very clear and bright buttons, you can enjoy yourself in the dark night without the lamp. ?Portable Mini Keypad?Portable Mini keypad,2.7" x 2.5" x 1.2" ultra-small size, effectively saves desktop space. 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. ?4-Layer Custom Configurations? Built-in MCU, after keyboard keys be set up, it can be stored in keyboard's MCU, and no need reset the keyboard even replace the computer. Can save 4-layer of configurations to handle multiple usage scenarios. Perfect not only for gamers but also for so many other types of users including designers and video editors. ?All Macro Keys?There are 16 macro function buttons. Macro functions can be used in series and can support up to 349 key commands, which can meet various complex usage scenarios, Such as: office/wps and other office software shortcuts, CAD/Ae/Pr/Ps shortcuts, various user accounts and passwords, game quick tricks, OSU!, basic code for programmers. ?All 9 Keys Programmable?All keys can be programmable. The custom programmable key functions include regular 127 buttons, web navigation buttons, 19 multimedia shortcuts, keyboard locks, Windows locks, etc. Each button can be set to any of these buttons.