The owner’s mobile phone is convenient to open the door, and supports Bluetooth, remote, QR code and other ways to open the door; Security confirmation, video intercom between residents and outdoor station; Support visitor authorization, visitor and courier door opening authorization can be done easily; Property payment and monthly parking card payment are convenient, no need to go to the property center; The face registration APP mobile terminal is completed, which is fast and convenient; Report for repairs and contact the property directly on the mobile phone; Property announcements reach users directly, making information release more convenient.