4.3 inch Visual Doorbell Interphone Systems

• ✔ High-Resolution Display: LCD resolution 480*272 for clear visual monitoring.
• ✔ Powerful Battery: Built-in 5000mAh lithium-ion battery providing approximately 30 days of standby time.
• ✔ Smart Battery Management: Real-time APP prompts for low power (below 5%).
• ✔ HD Camera: 1MP pixels with 1280 * 720 resolution and H.264 video format.
• ✔ Wide Viewing Angle: 140-degree field of view for enhanced security coverage.
• ✔ Flexible Storage: Supports Micro SD memory cards up to 64GB.
• ✔ Universal Fit: Suitable for door thickness of 35mm-130mm and hole diameters of 15mm-60mm.