See the people outside the door, Mobile phone video call，Contactless delivery for express and take-out. LCD Screen Display: The 7/10-inch display allows you to easily see the faces of visitors. It is safer and more practical. Wide Viewing Angle: 160-degree wide-angle lens allows you to see a larger picture without missing any visiting friends. The outdoor camera build-in IR LED light. With this function, you can see outside no matter day or night, keep your house more safer. Built-in microphone supports bi-directional communication between indoor monitor intercom and outdoor doorbell.ultra-clear sound quality without any noise., Manufacturer: QAXRZCUCD