The head can rotate freely up and down 45 degrees, you can easily adjust the angle. Comes with an optical lens with high precision and no distorted pictures. Enjoy High definition with great Focal length: 8 cm infinity , The default window is: 640 * 480/1280 * 720/1960 * 1080 7: Signal-to-noise ratio: over 48 dB (30 F / s 220 lux) ; specification: its built-in microphone