Wireless Wifi Door Bell Camera Intercom Doorbell with Smartphone Control Wi-Fi Enabled Connects to home/office WiFi network Upto 8 users can have this wifi doorbell connected on their smartphones See whose at the door with the video camera and talk to them from your smartphone! Multi-mobile devices to monitor Compatible with B/G/N networks PIR & Motion sensor Activates photo and video feed without pressing button 165 view angle " "Wide Angle view CMOS sensor with Night Vision 0.3M High Res Cmos Camera with IR Night Vision " "Remote Door Release If connected to a striker/door release lock you can remotely unlock doors for visitors from your smartphone Two-way audio and one-way video