1080P Full HD & Wide Angle; PIR Motion Detection & Two-Way Audio; HD Clear IR Night Vision; Easy Installation & Free Chime Included. Free Cloud Storage & Multiple-User Sharing: Video doorbell are one-time purchases that combine security with convenience. Records and stores all motion activity for up to 3 days via FREE cloud storage and the device will automatically overwrite the previous file to record in a loop.(The first purchase of the product provides 7 days of free cloud storage service, the service is valid for 90 days, after the expiration of 7 days cloud storage need to pay). You can also share the account with your family members, it can share up to 8 users (Only 3 users can view the screen at the same time, and only one user can intercom with the doorbell at a time).