Waterproof, IR night version, clear images regardless of the weather or time of day/night. When someone presses the call button on the outdoor unit, you can see and speak to whoever comes to your door. Gate locks so you can open them safely and easily from inside your home. 7-inch LCD screen; 52 different types of doorbell chimes; Volume, brightness, and contrast are adjustable; IR camera with night vision; Electric lock control function; Hands-free intercom; Automatic shutdown. Wired connection stability, clear vision for home security, allowing you to know the outside world while staying in the house. can be used in apartments, villas, hotels, offices, public buildings. Simply plug the doorbell receiver into 1. Multifunction: The video doorbell supports monitoring, hands-free two-way talk, unlocking, wireless control, password unlocking, electronic lock control function, etc. 2. Adjustable Setting: This video intercom doorbell has a ringtone with adjustable volume, brightness and