KDL 7" Wired Video Doorbell Door Phone System 2 Monitors with 1 Outdoor Camera with Two Call Buttons, IR Night Vision, 700TVL, Two-Way Audio for Multi- Apartments/Families

Package List: 1* Outdoor unit 2* Indoor Unit 2* Power adapter 1* White cable 2* Mounting plate 2* Bag of screws & wires 1* User manual Features: 1, The outdoor camera is with two call button, each button can control a monitor independently. Two way audio between camera and monitors. But the monitors cannot communicate with each other. 2,This is a wired multi-apartments video intercom system...