1. Easy diy, no wiring required, just connect the power and use it (outdoor camera comes with battery and AC/DC power supply). 

2. the signal from outdoor camera to indoor screen monitor uses 863-928Mhz frequency, the monitor connects to wifi and then connects to smartphone app.

3. Even without WIFI, the wireless video door phone can still work.    

4.HD infrared night vision, PIR motion detection, remote monitoring, fast response wireless visual full duplex intercom, 160° wide angle, 24 hours real-time monitoring, remote unlocking, 10 languages.

5. Camera pixel 1080P, screen resolution 1024*600.

6. Outdoor camera with low power consumption, standby time 6 months, working time 3 months.

7.  Currently the world's longest distance wireless visual access phone (the distance to the concrete wall is at least 3 times the WIFI distance). 

8. All video data is stored in the TF card of the screen monitor, no need to worry about data loss and no need to pay for cloud storage.