Intelligent Video Doorbell: Video Doorbell is an intelligent doorbell device that allows users to monitor the situation at the entrance in real-time through a built-in camera and transmit the video to smart devices such as smartphones. Bidirectional Dudio communication: Through bidirectional audio communication, when someone rings the doorbell, the video doorbell allows users to have a remote conversation with the person at the door through an intelligent device, thereby achieving remote doorbell response. Night Vision and Remote Ringing: The video doorbell is equipped with night vision function, usually equipped with infrared LED lights or other night vision devices, which can provide clear vision in low light environments, allowing users to check the situation at the entrance at any time. In addition, the video doorbell also includes a remote ringtone that can be used to alert users and allow them to respond and operate through smart devices when someone rings the doorbell., Weight: 0.33951188348 pounds, Manufacturer: NONDK