Feature:1. TWO WAY COMMUNICATION: The voice intercom doorbell comes with a camera and screen, enabling users to engage in two way conversations conveniently with visitors.2. AUTO RECORDING AND SNAPSHOT: This doorbell provides automatic video recording of visitors and snapshot features, providing users with a backup and review option for added security.3. WIDE ANGLE VISION: The camera offers a broad viewing angle of up to 170, covering a wider area that allows users to see a clear view of the entire doorway.4. LARGE DISPLAY SCREEN: With a 4.3 inch display screen, the doorbell provides a clear image display making it easier and more comfortable for users to observe.5. SPEAKER AND MICROPHONE: Equipped with high grade built in speakers and a microphone, this doorbell ensures clear sound information transmission.Specification:Item Type: Wireless Video DoorbellMaterial: ABSScreen Size: 4.3 inchCamera: 8MPViewing Angle: 170Features: Two way Intercom, Auto Recording, Auto PhotographyStorage: Supports up to 128GB Memory Card (not included)Sound: Built in Speaker and MicrophoneBattery Type: Outdoor Doorbell: Built in 1000mAh Lithium ion Battery, Indoor Unit: Built in 400mAh Lithium ion Battery.Package List:1 x Outdoor Doorbell1 x Indoor Display 1 x Data Cable2 x Backplate2 x Double Sided Tape1 x User Manual7 x Screws6 x Screw Covers