New Mobile Phone Remote Monitoring Video Intercom Doorbell Ultra Low Power Consumption and Long Standby Time 2600mAh 18650 battery*3, Standby for 90-180 Days. 166 DegreeViewing Angle With 720P Full HD Get a crystal clear full-HD picture of your home, from anywhere at any time, and see up to 16ft away in the dark. Night-vision settings allow you to turn on, off, or adjust the sensitivity of your night-vision so that you can obtain the perfect picture of your home, day or night PIR Detection smart doorbell has numerous security features to keep you safe. It features an excellent human detection and even provides motion detection alerts. You can even customize the motion detection sensors from its app. SD Card & Cloud Storage Max support 32GB SD card and Cloud storage , you get a live view of the surroundings anytime and anywhere you want. when you are away. Besides getting a live view, you can also get on-demand videos of the past activities. ENERGY SAVING You don't have to worry about battery life is too short because our 18650 3400mAH battery(full charge can support 3-6 months use), the big brand is safer. Please fully charge the device before use. WARM TIPS Note Normally the home/house wifi signal is about 15-30 meters in the open air without obstructions, the wall. If you need longer signal range, you can add one wifi extender Specification: Resolution:1280x720 Field of Angle View:166 degree IR LED: 6x850mm Wi-Fi: IEEE 802 11b/g/n Audio: Two way talk with noise cancellation Storage: 8G/16G/32G Battery :Support 3x18650 2600mAH batteries(Option) Monitoring: Device Button,Motion Detection,Remote Live View Notifications: Push Notifications within 1s Device Wakeup:Within 600ms