Feature:1. APP Function: The wireless doorbell camera adopts APP design, which makes the operation clearer, the interface is simple, and easy to use2. Multiple WIFI Connections: The video doorbell supports long distance signal transmission, video and voice calls, and short term video recording. Support WIFI to connect multiple users, can watch online at the same time3. Human Body Sensor: The doorbell has a built in human body sensor (PIR), which can record video when someone appears outside the door, and the recording can be played back by the APP, with doorbell button and mobile phone wake up function4. Real Time Monitoring: The wireless doorbell camera supports real time monitoring of mobile phones, so that you no longer worry about home security5. Energy Saving Battery: The wifi doorbell camera requires no wiring, is easy to install, and uses low power technology to effectively save batterySpecification:Item Type: Wireless Doorbell CameraMaterial: ABSFunction: Two Way Talk, Night Viewing Function, Mobile Phone APP, Motion Detection, Wide Angle Viewing Angle, Support Memory CardResolution: 1280x720Viewing Angle: 1.7mm at F2.4/166WIFI: 802.11B/G/NStorage Memory Card Storage: Maximum Support 32GBattery Type: 2 x 18650 Batteries (not included).Package List:1 x Wireless Doorbell Camera1 x Hanging Board1 x Sticker1 x User Manual4 x Ordinary Screws4 x Screw Covers1 x Hex Socket Screws1 x Hex WrenchNote:Shipped Without Battery