Features: Built-in sound absorbing microphone, your voice can be heard clearly within 10 meters. 0.3 megapixels, high definition images and true color. Left right 360 degrees and up down 30 degrees rotatable, you can freely adjust it as needed. Specialized optical lens, high precision. Automatic white balance, automatic color correction. Manual adjustable focal length. Suitable for desktop, PC, laptop computer with USB port.