Wireless Smart Remote Video Doorbell Home Video Doorbell Intercom HD Night Rechargeable WiFi Security Door Bell Smart Home Control Panels Homekit (White, One Size) Name: Smart doorbell Photosensitivity: support. Audio input: 1 channel Audio output: 1 channel Infrared unit: max. 50mA 2 keys: doorbell key and RESE-T key. 2 indicators: device status indicator and charging indicator. Battery interface: 1-way Charger power supply: DC 5V Maximum resolution: VGA, 640 x 480 Video playback speed: VGA 20fps Video preview: support, P2P 1ch Infrared light control: automatic, sensitivity level. Infrared light wavelength: 850 nm Cloud storage: Yes, three days of continuous storage is provided by Motion detection: support, sensitivity adjustable Connection method: 2.4GHz, WiFi Power Mode: Battery Powered Capacity: 1000mAh Supports battery level detection, voltage is less than 3.4V, can't wake up Firmware update supports remote update Operating temperature: 10~40. Working humidity 95% Package includes: 1 x doorbell The doorbell can be controlled by APP, automatic working mode, smart and portable. Portable size and weight for easy installation and removal 65 viewing angle of clear HD video, details are in front of the door, reliable and convenient