Smart Visual Doorbell Camera 1080P Phone DoorBell For Apartments PIR Alarm Wireless Security Intercom WIFI Video Doorbell

Parameter 
Senor : 1080p,GC2053, CMOS; 
Camera Lens : 120℃; 
Signal To Noise Ratio : ≥39dB; 
Minimum IlIumination : SNR 0.8Lux/f1.4 (Color Mode), 0.3Lux/f1.4 ( Black And White Mode ); 
Night Vision : 6 * 850nm Φ 28Mil Infrared Lamp; 
Video Format : MP4（ H.264 ）; 
Video Size /Frame Rate : 1080P/20fps; 
WiFi Connection : 2.4GHz Wifi, Support( 802.11 b/g/n ); 
Working Voltage : 3.7V; 
Working Current : 290mA; 
USB Charging Voltage : DC 5V /1.5A; 
Storage Temperature : 0 ℃ ~ 50 ℃; 
Working Humidity ＜95%; 
Working Temperature : -10~70 ℃; 
Battery Type : 18650 Cell, 2600mAH*2=5200mAH;