Smart Wifi Wireless Doorbell Remote HD Camera Video Phone Intercom Security Intercom Doorbell Features Uses: Guests can make video and voice calls and make short-term video recordings. The host can know the visitor's information without opening the door. wireless connection, ultra-low power consumption, can support multiple accounts to watch online at the same time APP access doorbell rules: 1 main account + 8 shared accounts = 9 users can connect to the doorbell, only 3 users can preview the screen at the same time at a time, and only one user can talk to the doorbell at a time" Specifications Memory: 32Mb flash Sensor: 30W GC0328 CMOS sensor Lens: 100 wide-angle lens Sensor performance: support automatic white balance, automatic gain control, automatic backlight compensation Minimum illumination: 0.8Lux/F1.4 (color mode), 0.3Lux/F1.4 (black and white mode) Night vision: 2pcs 850nm28Mil high-power infrared lights Night vision distance: 1 meter is the best, the longest distance is 3 meters Video format: JPG Video size/frame rate: 480P/7fps Recording method: 1. Button trigger recording Cloud Storage Map: 5 seconds (5 images) Battery type/capacity: polymer 803035/800MAH Battery discharge time: polymer battery sleep standby for 1 year Network Protocol: TCP/IP/HTTP/TCP/UDP/DHCP/DNS/DDNS/NTP/RTP/P2P WIFI connection: 2.4GHz wifi, support (802.11 b/g/n) Storage: Support cloud storage function (without TF card function), 3 days free circulating cloud storage Working voltage: polymer 803035/3.7V Working current: working current 219mA, deep sleep current 10mA, open infrared working current 280mA USB charging voltage: DC 5V / 1.5A Storage temperature (): (050) Operating temperature (C): -1050C, working humidity