Wireless Doorbell WiFi Outdoor HD Camera Security Door Bell Night Vision Video Intercom Voice Change For Home Monitor Door PhoneProduct model doorbellMain control model bk7252Sensor model gc0328Photosensitive supportAudio input 1 channelAudio output 1 channelInfrared drive, max. 50mAMicroSD card holder does not support2 keys: doorbell key and reset key2 indicators: equipment status indicator and charging indicatorBattery interface 1 wayCharging power DC 5VFunction and technical parametersParameter System architecture embedded FreeRTOSMaximum resolution VGA, 640 * 480Video coding standard mjepgAudio coding standard g711 AVideo frame rate VGA@20fpsDay night switching mode automaticVideo preview supports 1-way P2PSound acquisition supportVideo transmission encryption supports AESDingdong RF code EV1527The infrared lamp is controlled automatically and the sensitivity level is adjustableInfrared lamp wavelength 850nmDistribution network mode bluetooth distribution networkCloud storage support, three-day rolling storage by defaultMobile detection support, sensitivity level adjustableConnection mode: 2.4GHz WiFiPower supply mode battery power supplyBattery power detection support, voltage is lower than 3.4V, unable to wake upFirmware upgrade supports remote upgradeOperating temperature: - 10 ~ 45 Working humidity ≤ 95%Specifications:1.Video CallEasy to deal with visiting guests, when someone presses the doorbell, the doorbell will push notification to the phone, and the owner can enter the phone video conversation interface, which supports sharing to up to 10 members at the same time.2.Capture screenStorage to the cloud, security protection drip. When a visitor presses the doorbell, it can capture the