How to set oppor 15 for ringtone volume and WeChat notification information respectively?

1. Open the phone's setup options.

2. Find and open "Sound and Vibration" on the settings page.

3. Drag the bell volume left and right to adjust the bell volume.

WeChat notification sound settings:

1. Click on WeChat on your mobile phone.

2. Click on "My" below and select settings above.

3. Select a new email reminder.

Step 4 check the sound.

Note: This answer applies to the ColorOS system.