Feature: 1. Clear Display: 4.3inch TFT LCD screen, full metal casing, CMOS sensor, full glass 1MP HD lens, supports multiple video formats up to 1280x720P. 2. PIR Human Motion Detection : When someone approaches the door 1‑2 meters for about 2 seconds, the camera video is automatically saved. 3. Night Vision: 4pcs 850nm infrared lamps, infrared distance 1‑2m. It can clearly record the picture outside the door even in the dark environment. 4. Adjustable Ringtones: Built in 4 ringtones and 3 level adjustable volume; IP55 waterproof rating, can be used even in outdoor rainy . 5. EEPROM Data Storage Mode: No stored data will be lost after power failure, and maximum support 32G high speed memory storage 6. Power Supply: With DC3.7V 1800MAH lithium battery, low power consumption and long standby time; it can also be charged by USB data cable. Specification: Item Type: Smart peephole camera Material: ABS, zinc alloy Display: 4.3in Image Sensor: 1/4in CMOS Effective Pixels: 1280(H) x 720(V) Minimum Illumination: 0.5Lux/F2.0 color), 0.02Lux/F2.0 (black and white) White Balance: Auto tracking white balance Gain Control: Automatic Signal To Noise Ratio: > 50dB Backlight Compensation: On WDR: Yes Electronic Shutter: 1/4-1/10,000s /Night Mode: Filter color to black Focal Length: 2.4mm Horizontal Viewing Angle: 140° Aperture Number: F2.0 Infrared Night Vision Lights: 4pcs, 3mm, flat head, 90°, 850nm IR lights Auto Power Off: Off, 10s, 20s, 30s Languages: 6 (Chinese, English, French, German, Italian, Russian) Motion Detection: Support Display Settings: On/Off Recording Time: 10s, 20s, 30s Number Of Photos: One, two, three Format: Support format memory card Light Source Frequency: 50HZ / 60HZ Power off Memory: Support Default Setting: Support Ringtone Settings: Built in 4 ringtones Volume Setting: 3 level volume optional Main Chip: JR Infrared Human Body Sensor: PIR sensor PIR Sensing Mode: 9.5mm Fresnel lens LCD Screen Type: 4.3 LCD Screen Resolution: 480 x 272 Memory Card: Maximum support 32G Maximum Image Size: 1280 x 720 Frame Rate: 50HZ: 25 frames (1280 x 720P) Video Compression: MJPEG o Compression: G.711/16kbps Standby Current: 80UA Operating Temperature: -30℃-65℃ (outdoor) / -10℃-50℃ (indoor) Working Humidity: <90% Protection Class: IP55 Installation Method: Screw plate Applicable Door: Approx. 40-110mm/1.58-4.33in Applicable Door Hole: Approx. 15-50mm/0.59-1.97in Battery: 1 x 1800mAh lithium battery (included) Package List: 1 x Indoor Monitor 1 x Peephole Door Viewer 6 x Screw 1 x Mounting Plate 1 x USB Cable 1 x Manual