1、3 Modes Connection: The RGB keyboard includes 3 modes of connection, 2.4GHz wireless mode, Type C USB wired and Bluetooth mode. 2、RGB Backlighting: The Keyboard features RGB lighting with 19 effects and 9 single color to choose from. Simply turn on the switch, and once the keyboard is activated, you can access the effects and enjoy your gaming experience. 3、Optional Shaft: There are two shafts for you to choose from, with long and stable life, fast triggering and accurate feedback, and comfortable button feel. 4、Sound Insulation Cotton: Add no dead angle stuffed sound insulation cotton between the PCB boards, which can greatly reduce the noise and cavity sound generated when the shaft is struck, and ensure that the keystrokes of the keyboard are pure and comfortable. 5、Ergonomics: The keycap form is specially developed for a more ergonomic and comfortable typing experience, its glossy curvature perfectly fits the shape of each finger, and the N key turn. Item Type: 84 Key Bluetooth Mechanical Keyboard Material: Plastic Function: Computer Control Scope of Application: Desktop Computers, Notebook Computers, Etc. Connection Method: Bluetooth, 2.4g, Wired Number of Keys: 84 Keys Backlight: RGB Backlight Ergonomics: Support Full Key No Punch: Support Built in Battery: Lithium Battery Battery Capacity: 3000mAh 1 x Keyboard 1 x Key Puller 1 x Shaft Puller 1 x 2.4G Receiver 1 x Connecting Cable 1 x User Manual