Saful TS-YP803DVR 7-inch TFT LCD wired video door phone (with taking picture function) With calls, monitor, intercom, unlock, hands- ... lock-control function 4. Monitor the view out of the door 5. Volume, brightness and contrast adjustable 6. Rain & oxidation-proof ... indoor unit,fashionable and luxury 8. 16 kinds of rings for your options 9 outdoor unit is small, aluminum alloy shell ...