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. Mechanical for key shaft, durable up to 50 million times Support ergonomic and programmable design Can be used in the operating system like for Windows /Vista/Linux/MacOS etc. Specifications: Material: Acrylic+Metal Size: approx 110x72x37mm/4.33x2.83x1.45in Color: Black / White Optional Keys: 9 Keys/ 12 Keys Charge: Type C USB ConnectionBluetooth-compatible Package Includes: 1 PC x Mini Keyboard 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.