Weak bass is almost always a fit or settings issue. Here's how to solve it.

First, note that if the original audio source lacks bass, the earbuds will reflect that. To troubleshoot:

1. Ensure the charging case has enough power, then reset the earbuds:

• Place the earbuds in the charging case and leave the case open.

• Press and hold the button on the charging case for 10 seconds until the LED indicator flashes quickly 3 times, confirming the reset is successful.

2. Try playing different types of music and increase the volume on your connected device.

3. Find the ear tips that fit your ears best. A poor fit will prevent you from experiencing optimal bass performance. If one earbud doesn't feel secure, try mixing sizes (e.g., medium for the left ear, large for the right).

4. In the app, go to HearID > Default EQ and select the "Bass Booster" EQ profile.

5. You can also go to HearID > Default EQ to customize your own EQ curve.

6. Try using the earbuds with a different Bluetooth device to see if there is any difference.

If you need further assistance, please don't hesitate to contact us.