Kind reminder: 1.The peephole of this doorbell is a small camera and does not have the function of a doorbell button. 2. After installing the doorbell, if the battery is low, please only use a 5V 1A charger to connect to the doorbell for charging. Other specifications of chargers may burn out the doorbell; 3. Do not unplug the cable between the doorbells for charging, as this can easily damage the cable (when the charging cable is not long enough, a mobile charging plug board needs to be used separately) Product Features 【Tuya Smart 4.3" LCD Digital Peephole Door viewer Camera 】 It can connect to WiFi router wirelessly. You can monitor (handheld including smartphones, Android tablets) and one or two-way intercom with noise reduction (view visitors, video calls, snapshots, recordings, etc.). The system function menu is located in the mobile APP console instead of the indoor display. (The device is widely used in homes, apartments, villas, hotels or offices, etc.).At the same time the large 4.3" LCD screen enables you or your family to see out the door clearly and sharply. 【PIR detection and 120° Wide Angle】 Using 720P camera 100° wide-angle lens, automatic switching of day/night vision sensitivity (adjustable; distance is about 3-4 meters), TFT color LCD display, suitable for AHD images and videos. Motion detection (PIR motion sensor can automatically detect body movement and trigger push messages and videos (stored to TFT card or mobile phone) within seconds, keeping your home safe 24 hours a day.100° Wide Angle, Easily Maximize Your Home Security with a Clear View of Your Doorway. 【One-way intercom brings convenience】 When someone at the doorbell, it will trigger pir and you app get notifications and you can check the live view and check who at the door and hear what the visitor say. But visitor can not hear what you say. Because door camera is so mini, that can not install the speaker. 【Long-lasting battery and app control】 Built-in 5000 mAh rechargeable large capacity battery supports 30 days long standby (usually 3-5 calls per day), low battery reminder and USB port charging. This digital door viewer supports both iOS and Android, download the Smart Life App to receive every detail of what happens every day at your front door anytime, anywhere. Never miss a visitor or prevent theft, strangers or voyeurs. 【TF Card or Cloud Storage】 Support Max. 128G TF Card for local or event recording. Also support 30days trial cloud stotage based on Tuya platform Product model: S50 2 million pixel high-definition Screen size: 4.3-inch high-definition display screen Storage cloud storage and card insertion 2-in-1 The storage card supports a maximum of 128 GTF cards Alarm method: Automatically capture and push when a person is detected Method: Microwave radar human detection APP Tuya Smart Infrared night vision is about 2 meters Built in 5000mAh lithium battery Approximately 120 degrees wide-angle field of view Real time video calls Cat eye aperture 15 to 50 millimeters The door thickness requirement is 40 to 110 millimeters