APP Unlock & Remote Control. Receive mobile notifications when someone presses the doorbell. Then, respond to the notification to see, listen and speak to visitors when you are somewhere. This video intercom can be connected to an electric lock to unlock the door remotely via the phone app or the indoor monitor. 7 inch LCD Screen & Waterproof Doorbell. 7 inch TFT screen with slim design, hands-free touch control. Outdoor doorbell with waterproof cover, built-in infrared sensor. SD card included, automatic recording. When visitors press the doorbell or triggered motion is detected, the camera will automatically take snapshots or videos and save them to an SD card (32G SD card included). Motion Detection HD Night Vision. With the latest night vision technology and high-definition infrared sensor, you can identify visitors at night in a dimly lit environment and automatically take photos, although no one presses the doorbell. Easy Installation & 100% Satisfaction Guarantee - Easy