1. WIFI visible doorbell, more secure information2. Wireless installation, one click pairing, more convenient installation3.4.3-inch IPS screen, full view display, clear and visible4.2.4G private protocol, longer transmission distance, stronger signal5. Video two-way intercom6. The doorbell has ultra-low power consumption and long standby time.7. Indoor captain plug-in mode, quick response8. The system automatically stores photos and inserts cards for automatic recording9. Infrared night vision function10. Indoor Unit 6 Dingdong Music Switching11. Switching between four languagesImage sensor: GC0328/85 degrees/4 infrared light replenishmentDisplay screen: 4.3-inch IPS screenRecording resolution: 640 * 480Battery model: 800mAh, permanent battery life 1-3 monthsTF card: supports up to 128G/MJEPG format [not included]Audio information: built-in speaker, microphoneTransmission distance: 2.4G private protocol, transmission distance 1-150 meters [depending on obstacles]Power supply information: DC5V/2AWorking temperature: -10 ~60 Working humidity: 10%~90%Screen weight: approximately 135 gramsScreen size: approximately 11.8 * 9.2 * 1.8cmDoor bell size: approximately 8.5 * 5 * 2.5cmOperation method:1. First, install the doorbell at a doorstep that is convenient for reminders. You can choose to fix it with a base or stick it with film, or use it together2. The screen can be placed in a convenient location for prompt placement, and can be fixed on a wall or placed on a table or cabinet3. The product can adjust brightness, prompt volume, date and time, language, etc. Press the M key to enter, the - and+signs up and down, the phone key to confirm entry, and the M key to exitNote:1. The product screen has a protective film, and the screen is not a touch screen model2. The screen needs to be turned on, and the doorbell button can be activated3. The product charging DC5V/2A adapter should not exceed, otherwise the device may burn out easily4. The product does not come with a memory cardProduct List:Door bell * 1Display screen * 1Install screw sleeve * 1Door bell, display screen base * 2Door bell, display screen film * 2Charging cable * 1Instruction manual * 1