Intelligent Visual Doorbell, Wireless Visual Doorbell, 4.3 Inch Display Screen, Home Intelligent Two-way Intercom, Video Monitoring Specifications: Product type: Intelligent visual doorbell Main control: Jianrongand2.4G module Image sensor: GC0328/85 degrees/6 infrared light replenishment Display screen: 4.3 inch IPS screen Recording resolution: 640 x 480 Battery: 800 mA, permanent range of 1-3 months Memory: supports up to 128G/MJEPG format Audio information: built-in speakers, microphone Wireless mode: 2.4G private protocol, transmission distance 1-150 meters Power supply information: DC5V/2A Working temperature: -10 -60 Working humidity: 10 percent -90 percent Gross weight:200g/0.44lb Package size:20x15x5cm/ 7.87x5.91x1.97 inche Features: No WIFI visible doorbell, 2.4G private protocol, long transmission distance, more powerful signal, and more secure information Wireless installation, one click pairing upon startup, making installation more convenient. 4.3 inch IPS screen, . Video two-way intercom, indoor unit 6 Dingdong music switching, long plug mode, quick response The doorbell has ultra-low power consumption and long standby time. The system automatically stores photos and inserts cards for automatic recording. 4.3 inch PS screen,full view display, infrared night vision function, clearly visible during the day and night with clear and visible dynamics outside the door. The size is not large or small, just right, and does not take up space. It can be placed without the need to open the door to view the real-time condition outside the door. With a screen display, it is more convenient. Visual intercom, seeing the person outside clearly, bidding farewell to blindly opening the door. Visitors press the doorbell button, and the indoor machine tinkles to display the real-time screen outside the door. It can achieve two-way video communication with visitors with one click Package Include: 1x doorbell 1X display screen 1x instruction manual 1x charging cable