Description: The product is easy to install and can be well hidden in the door. It has the advantages of high-pixel camera, high-definition display, wide viewing angle, easy operation, PIR function and so on. This is a better solution for home safety and helps remove security risks. You don't have to open the door to get to know who is at the door. No longer open the door for a stranger! Note: This product is suitable for cats eye aperture range: 16mm-55mm, door thickness range: 40mm-120mm. Not suitable for: double-layer doors, doors with small windows or steel mesh, soft-packed doors, or doors without peepholes (you need to punch yourself) No professional installation is required. Users can install it by themselves. For installation steps, please refer to the manual or contact customer service. Features: 200 mega pixels professional security camera. See the visitor's face clearly. 1080P high-definition picture quality, clearer imaging. Watch the live broadcast in real time, check the doorway dynamics at any time. One-key ring to call, real-time video intercom. You can also communicate with visitors in front of the door remotely when you are away PIR human body monitoring: automatic capture, remote alarm. When the smart door eye detects that someone is present at the door, it will immediately start the capture video and push the alarm message to the mobile phone. When it learns the doorway dynamics and someone stays abnormally, the smart door eye immediately pushes the message and automatically captures the alarm. Watch the live broadcast smoothly in real time, without interruption of network recording. Using HEVC (H.265) encoding protocol, live broadcast is smooth and video upload is fast. When the Micro TF card is inserted, the smart cat eye will also keep the recording state when the network is disconnected. After the network is restored, the recording during the disconnection can be viewed through the mobile APP or Import it to PC for viewing. Low power consumption design, standby basically does not consume power, 5-10 calls per day can be used for about 1-2 months; Use 4.3" large display TFT Color LCD, you can easily see the visitor through it. Easy installation (comes with a User Manual) 121 wide angle, provide a panoramic view for you. Support PIR function,motion detection. Specifications: Color: Black Material: ABS Battery: Lithium Battery LCD: 4.3" TFT Color LCD Viewing Angle: 121 Pixel: 2.0 mega pixels Door Thickness Requirement: 40-120mm Door Hole Size Requirement: 16-50mm Package included: 1Pc cat eye 1Pc doorbell host 1Pc USB charging cable (about 3m long) 1Pc steel sheet bracket 6Pc screw 1Pc manual Have a great time shopping!