Features: Experience seamless home security with the wireless video doorbell featuring a 4.3" screen, 2.4G two way intercommunication, and 850nm ultrared rays night visibility for clear 70° doorway monitoring. This smart doorbell boasts an 800mAh polymer battery lasting 60 days, low power consumption design, and expandable 256GB local storage for continuous security footage. Ideal for security conscious homeowners, families with children, and remote workers needing real time visual verification of doorstep visitors. Monitor package deliveries, verify guests during work from home hours, or review recorded footage of suspicious activity around your property. The wireless installation simplifies setup while maintaining professional protective through encrypted 2.4G transmission and weather resistant ABS construction. Specifications: Product name: Smart video doorbell Product Component: ABS Display Size: Approx.11.8x1.5x9.5cm/4.64x0.59x3.74inch Doorbell Size: Approx.4.9x2.3x8.7cm/1.92x0.9x3.42inch Working humidity: 10%--90% Viewing angled: 70° Display: 4.3 inches card: supports up to 256G Night visibility type: ultrared rays night visibility Power supply information: DC5V/2A Package Includes: 1pcs Display 1pcs Doorbell 1pcs Data Cable note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.