Dear customer,

To disable sound:
Press any button to wake up the lock.
Press the “lock button” to enter the menu.
Enter the admin password.
Select “6” for setup and press the lock button.
Choose “1” for mute and press the lock button.
Select “1” for yes and press the lock button to confirm.

To enable sound:
Press any button to wake up the lock.
Press the “lock button” to enter the menu.
Enter the admin password.
Select “6” for setup and press the lock button.
Choose “1” for sound and press the lock button.
Select “1” for yes and press the lock button to confirm.

We hope this helps! If you have any further questions or concerns, please feel free to reach out.