Features: -Support WiFi -Movement detecting. Intrusion alarm system -Support APP Function, it can be applied for Android, iphone, ipad APP Software -Support real-time video and audio chat with visitor -Support picture snapping and video recording function -Support night vision and built-in IR-CUT technology, available day and night -Rainproof: The doorbell can be installed outdoors, and you are no need to worry about it is drenched by rain. Specification: Resolution: 1280*720 Field of Angle View: 166° IR LED: 6*850mm Wi-Fi: IEEE 802 11 b/g/n Audio: Two-way talk with noise cancellation Recording: Device SD card recording(20 seconds) Storage: 8G/16G/32G(not included) Battery: AC Input/2 x 18650 protruding end batteries(total 6800mAh, work regularly for 6 months.) (Not Included) Monitoring: Device Button, Motion Detection, Remote Live View Notification Function: Push Notifications within 1 second Device Wakeup: Within 600 ms Power Consumption: Power Consumption Standby 200μA, Working 170mA Package Included: 1 x WIFI Doorbell 4 x Screws 4 x Installing Accessories 1 x Wrench 1 x Sticker 1 x User Manual