Description: Name: Wirele Doorbell Camera App: Kement; Main control: XR872; 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; SNR: 41dB; Minimum illumination: 0.8Lux/F1.4 (color mode),0.3Lux/F1.4 (black and white mode); Night vision: 2x850nm28Mil high-power infrared lights; Night vision distance: 1 meter effect is best, the longest distance is 3 meters; Video format: JPG; Video size/frame rate: 480P/7fps; Recording method: 1 Key trigger recording; Cloud storage map: 5 seconds (5 pictures); Battery type/Capacity: Polymer 803035/800MAH; Network protocol: /TCP/UDP/TCP/IP/DHCP/DNS/DDNS/NTP/RTP/P2P; WIFI connection: 2.4GHz WIFI, support (802.11b /g/n); Ding-dong: Support RF433MHZ Ding-dong; Storage: Support cloud storage function (without TF card function),3 days free cycle cloud storage; Working voltage: polymer 803035/3.7V; Working current: working current 219mA, deep sleep current 10mA, infrared working current 280mA; USB charging voltage: DC 5V / 1.5A; Storage temperature () : (0 ~ 50); Operating temperature () : -10 ~ 50, working humidity <95%; Wake-up mode: 1 doorbell button wake-up; APP rules: 1 main account +8 sharing accounts =9 users, only 3 users can preview the screen at the same time, only one user can talk to the doorbell at a time; Usage: Guests can visit the video voice call, short time recording, the owner does not need to open the door to know the visitor information, infrared HD night vision can clearly see the visitor at night; Features: Wirele connection, ultra-low power consumption, multiple accounts can be watched online at the same time; Packing list: 1 x smart doorbell 1 x Dingdong machine 1 x USB cable 1 x Manual 1 x Packing box Note: There may be color difference due to different computers or smartphones, please forgive me!