Features: brand new and high quality Type-C interface, plug and for play without driver With knob function, cut the previous song to the next song, add and subtract the volume, zoom-in-and-out of the picture, one-handed operation. Support ergonomic and programmable design; Support USB-C and Bluetooth-compatible dual mode Can be used in the operating system like for Windows /Vista/Linux/MacOS etc. Package Includes: 1 PC x Mini Keyboard Specifications: Item: Mini Keyboard Mode:Support USB-C and Bluetooth-compatible Dual Modes Suport: Konb To Adjust Volume /zoom-In-And-Out /Copy/Paste/Mute/Previous/Next Song etc Material: Acrylic Size: approx Standard Color: Black/White Keys: 3/4/6/9/12 Keys Charge: Type C USB Optional Type: RGB 3 Keys/RGB 4 Keys/White 6 Keys/RGB White 6 Keys/ RGB Black 6 Keys/Black Bluetooth-compatible 6Keys/ Black Bluetooth-compatible 9 Keys/Black Bluetooth-compatible 12Keys note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-2mm error due to manual measurment.