✿Drive-free design, USB plug and play, to use. ✿When focusing manually, the lens rotates left and right to adjust the far and near sharpness. ✿Built-in microphone makes your video calls and picture synchronization. ✿Use high-definition lens, good light transmission, true color reproduction, effectively reduce image distortion. ✿High-definition video, clear and smooth, high-definition picture for you to show, convey a beautiful piece of life.