Powerful, high-performance, low-power dissipation processor inside. One-click viewing, visitors are clearly visible by pressing the viewing key. Zinc alloy outdoor sub-machine, zinc alloy is better to prevent external damage. See the people outside the door, Mobile phone video call，Contactless delivery for express and take-out.. 120°large wide-angle lens, 720P wide-angle surveillance lens with clear insight into the details outside the door., Manufacturer: QAXRZCUCD