Smart Doorbell, Ring Doorbell Camera, Wireless Ding Dong Doorbell Wireless Remote Video Doorbell, Intelligent Visual Doorbell Home Intercom HD Night Vision WiFi Rechargeable Security Door Doorbell

??Product parameters: ?? Product Name: smart doorbell ?? Photosensitive: support ?? Audio input: 1 channel ?? Audio output: 1 channel ?? Infrared drive: max. 50mA ?? Charging power supply: D/C 5V ?? Maximum resolution: 1080p ?? Day night switching mode: automatic ?? Sound acquisition: support ?? Video transmission encryption: support ?? Infrared lamp control: automatic, sensitivity level Adjust ?? Wavelength of infrared lamp: 850nm ?? Distribution mode: Bluetooth distribution ?? Storage:Max 128GB SD Card (not support) ?? Connection mode: 2.4GHz, WiFi ?? Power supply mode: battery power supply ?? Battery capacity: 1000mah ?? Battery power detection support, voltage is lower than 3.4V, unable to wake up ?? Firmware upgrade supports remote upgrade ?? Operating temperature: - 10 ~ 45 ? ?? Working humidity ? 95% ?? Doorbell machine size: 7.5x4.6x2cm/ 2.95x1.81x0.79 inch ?? Dingdong machine size:6x2.7x0.5cm/2.36x1.06x0.2inch ?? Package size:10x9x5cm/3.94x3.54x1.97 inch ?? Gross weight: 175.3g/0.39 lb ?? ??Package Includes: ?? 1 x Doorbell Machine ?? 1 x Internal ding-dong Machine ?? 1 x Charging cable ?? 1 x Adhesive installation aid ?? 1 x Manual