Real Time Tracking；You can check the opening records easily through our app to monitor who accessed your lock and when it was accessed. Keeping safe only needs a mobile. Support Wi-Fi router to unlock the door and change admin pass code remotely Silent mode；Turn on or turn off the lock sound as you like.If you have little child or offen enter and exit you home late at night, you can set silent mode for your family. Private mode Passage Mode；App has access to change the lock into passage mode, it means the lock will not be closed and it will remain open all the time. If you don't need passage mode, just turn off the passage mode from App setting. Time Attendance；It is more than a smart home lock, it is good for office as well. You can check the daily attendance of all staff, who access the door by App, card or passcode.his function can be turned on or off in the setting., Manufacturer: DRAUXI