Universal Smart Home Video Doorbell Wifi Camera Wireless Doorbell Call Intercom Video Automatic Induction Wireless Smart WiFi Door Bell Feature: REMOTE CONTROL: See, hear and speak to anyone at your door from your cellphone via Wi-Fi video doorbell, tablet via Android / iOS device. NTWO-WAY AUDIO: Get streaming video and communicate with visitors via two-way with live view. It also automatically covers the expired video files. IR NIGHT VISION: Watch over your home at day or night, with infrared night vision in clear 720p HD video doorbell camera. LOWER POWER AND CHARGING: Work with two batteries fit for doorbell, when the batteries out of power, please pull the doorbell out and charge battery. MOTION DECTION: Get instant alerts when visitors press your doorbell or the built-in motion sensor, you can watch real-time videos on your smartphone. Parameter Description Product Category VGA Intelligent doorbell Product model DoorBell_X2 Main control model BK7252 2 keys: doorbell key, key Indicator lights 2: Device status indicator, charging indicator Battery connector 1 way Charging power DC 5V System structure embedded FreeRTOS Maximum resolution VGA, 640*480 Video encoding standard MJEPG Audio encoding standard G711. Video frame rate VGA 20fps Day and night switching mode Automatic Connection mode 2.4GHz WiFi Power supply mode Battery power Battery power detection Support, voltage below 3.4V, can not wake up Firmware upgrade Support remote upgrade Working temperature -1045 Working humidity 95% Package includes: 1 X Doorbell Camera 1 X Mounting Kits