Intercom Smartphone Camera Video Doorbell Video Smart Home Doorbell comes with motion detection, real-time alerts, 166- Wide Angle Lens, 720P HD video, two-way talk, which let you don't miss any visitors and secure your home day and night. The photos or video clips at anytime and store in your phone. Device Wakeup:Within 600ms Notifications: Push Notifications within 1s : Device Button,Motion Detection,Remote Live View IR LED:6x850mm 1xSticker 1xScrew package Feature:WARM TIPS: The battery contains a small amount of electricity or no electricity when it leaves from the factory. Charging is required for the first time use. It takes about 5 hours to charge. IR Night - Day or night rain or shine it allows you to take photography and record videos at any time. Our doorbell your home in real-time no matter where you are. Smart PIR Motion Detection and Loop Recording--Detecting the slightest motion at the entrance. (motion detection alarm generally works within 3 , and the sensitivity can be adjusted in three levels.) Get instant alerts and push notifications to the mobile phone when visitors Press your Doorbell or trigger the built- sensors. The sensitive time is adjustable. It also automatically covers the expired video files, easy to manage the records. Easy to set up & Low Consumption, Ultra & Long Standby Time--pair with your mobile by connecting Wi-Fi, compatible with iOS and Android and support mobile phone remote wake-up the device within 1 second. Adopt ultra low power technology, In this mode, the smart doorbell can work more than 4 months, video doorbell comes with an innovative quick-release rechargeable battery pack, standby time more than 8 months. using 18650 lithium batteries, capacity 3400mAh, higher performance, Field of Angle View:166° Recording: Device SD Card recording (20s) Specification: Resolution:1280x720 2x18650 batteries Audio: Two way talk with noise cancellation Two-Way Audio -Communicate with visitors via two-way audio with noise cancellation--Allows you to talk to your visitors wherever you are. And you can always your front door by watching real-time videos on cellphone at home or outside. 1 x User Manual Battery : Three 18650 batteries（included） Storage: 8G/16G/32G 1 x WIFI Doorbell Wi-Fi：IEEE 802 11b/g/n Power Consumption:Power Consumption Standby 200uA,Working170mA