Description: Name: Smart Doorbell Photosensitive: support. IR Unit: Max. 50 mA 2 keys: doorbell key and RESE-T key. 2 indicators: device status indicator and charging indicator. Battery interface: 1 way Charging power supply: DC 5V Maximum resolution: VGA, 640x480 Standard Video Code: M jepg Video frame rate: VGA 20fps Day and night switching mode: automatic Video preview: support, P2P 1ch Sound collection: support Video transmission encryption: support Dingdong RF code: EV1527 Infrared light control: automatic, sensitivity level. Infrared light wavelength: 850nm Distribution method: Bluetooth distribution Cloud storage: Yes, three days of continuous storage are provided Motion detection: support, sensitivity adjustment Connection method: 2.4GHz, WiFi Power supply mode: battery powered battery Capacity: 1000mah Support battery level detection, the voltage is less than 3.4V, cannot wake up Firmware upgrade supports remote upgrade Working temperature: 10～40℃. Working humidity ≤ 95% The package includes: 1 x Doorbell 1 internal ding dong machine. 1 charging cable