Video Intercom For Home Apartment 7-Inch Screen Support Monitor Unlock Video Intercom With Camera 4 Wire Door Bell

7 Inch Video Door Phone Doorbell Intercom System  Kit 1-Camera 2/1-Monitor Night Vision home intercom system functions and features: 1. 【One-button unlock】 It can be connected to an electronic lock, and the monitor screen can be unlocked with one button 2.【Multiple Ringtones-Switch freely】The 25 polyphonic ringtones can be switched freely, which is elegant and beautiful. 3.【Rainproof and Dustproof】Stable work in rainy, cloudy, cold and snowy days 4. 【7-inch screen】Simple and comfortable design interface, easy to operate all settings with fingers. Handsfree Dual-way Intercom and Indoor Monitoring When a visitor ring the bell, the monitor will be activated and show the image outside. Press the answer button, then you can talk to outside, press the answer button again to turn it off. If you do not press the button after conversation is finished or if no one answer the call, the monitor will turn off automatically after 60s.