Color video door phone intercom,Talk, Unlock, Monitor, 16 melodies. Features : 1. Aluminum alloy panel of indoor unit,brand-new,elegant and ... fashionable.2. Guard against disassembly,anti-hit,waterproof,wearable zinc alloy outdoor station.3. 7"TFT,nonradiative,energy saving and high ... on the wall with screws(included)5. Cover the aluminium alloy panel and tighten up the screws one the bottom.Unit ...