The moon tooth displayed on Xiaomi bracelet 2 indicates that the bracelet opens the do not disturb mode. Detailed setup steps are as follows:

1, enter the smart bracelet APP, and click my option is the arrow position.

2. Press the bracelet 2 option indicated by the arrow to make a selection.

3. Find more options at the end of the menu, and then click Enter.

4. Select Do Not Disturb mode in this screen and enter the setting options.

5. You can choose "Off, Smart On, and Timing On" here. After clicking Close, the logo of Crescent Moon will disappear.