17TFT LCDdisply in high resolution,no radiation and high definition.
2)Low power consumption.
3)Handfree intercommunication.
4)Electric-controlled unlocking.
5)Monitoring outdoor.
6)LED lumination,compensation.
7)16or8chord melodies for option.
8)Water-proof damage-proof&explosion-proof outdoor unit.
9)Encosed an adapter and 15m cable for DIY installation
10)video door phone