LCD Screen Display: The 7-inch display allows you to easily see the faces of visitors. It is safer and more practical. Wide Viewing Angle: 120-degree wide-angle lens allows you to see a larger picture without missing any visiting friends. Automatically snapshot or record, the video intercom system will automatically snapshot or record if visitor press the video doorbell. 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