Feature:1. Voice Changer, 2 Way Intercom: The video doorbell camera built in microphone and speaker, you can make a real time video call to anyone in front of the camera in any situation. Ideal gift choice for the elderly, kids and women living alone.2. 1080P HD Video and IR LED: Video doorbell camera can clearly see your house with Full HD 1920x1080 pixels, with IR LED, it provides clear visibility even in complete darkness, the doorbell can protect your home from day to night.3. PIR Motion Detection and Real Time Alert: Wireless doorbell camera built in PIR sensor allows you to receive real time alerts and push notifications when detects human motion. 5 level sensitivity adjustment and customizable areas can reduce unnecessary interruptions and focus only on important matters.4. 2.4G WIFI Connection: High speed 2.4G WiFi network connection, supports 2 way voice calls with noise cancellation, supports waking up the device via mobile phone within 1s.5. Long Battery Life: Built in 4000mAh high capacity polymer li battery for 58 months of operation. Receive an alert when motion is detected or someone presses the video doorbell. Never miss a visitor wherever you are.Specification:Item Type: 1080P Wireless Doorbell Video CameraMaterial: ABS, ElectronicViewing Angle: 2.6mm at F2.0/155 DegreesIR LED: 6x850nmWiFi: 802.11 b g nBattery Type: Built in 4000mAh Li Battery (Included).Package List:1 x Smart Video Doorbell1 x Ding Dong Machine1 x Data Cable2 x Screws2 x Expansion Tubes1 x Adhesive Backing Pad1 x User Manual