Feature 1EASY TO USE: Wireless video doorbell intercom system with electronic unlocking function, convenient and fast, no need to worry about losing the key 2OUTDOOR SURVEILLANCE: The video door phone system can monitor the outdoor situation and effectively prevent the elderly and children from opening the door to strangers 3FLEXIBLE AND ADJUSTABLE: Image brightness, chroma, ringtone volume, intercom volume of video door phone doorbell can be adjusted 4WATERPROOF AND CLEAR: HD camera with rain cover, built in speaker and microphone, 140 wide viewing angle, day and night can clearly see visitors 5HD SCREEN: Smart home video intercom features a 7in TFT LCD screen for radiation free, low power, high definition widescreen imagesItem Type: Video Door Phone SystemMaterial: ABSBasic Parameters: Call Delay Time: 120S10%Monitoring Delay Time: 60S10%Camera Sensor: 420 LinesLens: 3.6mm 92 degrees .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Screen1 x Camera4 x Connecting Cable8 x Expansion Nail9 x Screw1 x Adapter1 x User Manual