About the remote control:

Provides a remote door opening function. The door lock will automatically lock after closing the door. In the case of
no obstacles, the recognition distance is 30m. The maximum number of remote controllers that can be added to
each door lock is 20.

This is a multi-functional automatic door lock:

1. Use home power
2. Connected to the switch and unlocked by the switch
3. Connected to the building system

Tuya App Functions:
Works via WIFI, no gateway required;
Remote unlocking needs to be triggered (9 #);
Dynamic password, one-click generation in the application;
Temporary password, free to adjust the effective use time range, no time limit;
Information records, you can freely query the use records of door locks;
Information reminder, automatically notify the mobile phone when the door lock is in use;
Universal in all regions of the world, even if you lock the door at home, in other cities/countries
you can still use these functions if the door lock is connected to WIFI;

TT lock APP Functions:
TT lock app is a smart lock app, its multiple functions always satisfy your needs
1.The lock connect with the phone by Bluetooth.
2.Send temporary/eKey password remotely
3.You can open the lock / manage the lock (add user / delete user / set password and so on)
4.Add a G2 gateway if WiFi connection is required  (Gateway buy extra)"Connect Alexa through G2 gateway