Now there is a range of Doorbirds for Multi-Dwelling residences. The visitor can choose which residence they are calling 3 call buttons. Great if you have a granny flat, separate office, or your home is a duplex or small townhouse complex. You can see your visitors, speak with them and open the door by smartphone or tablet from anywhere in the world. DoorBird combines innovative technology with exclusive design. A smart solution Designed and manufactured in Germany. Multiple Fascia's available - V2A Stainless Steel is IP65, V4A in all finishes is IP65 with chrome-nickel steel with molybdenum additive for harsh conditions and is Salt-Water resistant. Multi-Dwelling installation that connects to App on Smartphone or Tablet 180 - 720p HDTV Camera with superior Audio Flush Mount Multiple Fascia's Connect to and Control 2 x Electric Door/Gate Connect to leading brand Smartlocks, CCTV, and NAS Devices RFID technology with Keyfob and Swipe Card included Outside Ready IP65 New and Improved Motion Sensor 2 x illuminated call buttons Ethernet *No WiFi on this model Smart Home Compatible with many platforms Visitor History snapshots with date and time, within app Up to 8 Devices can connect to a Doorbird Up to 10 Doorbird devices can connect to the app Illuminated Nameplate