Last updated: August 31, 2026
Applies to: Heavys H1E earbuds
Estimated time: 5–10 minutes
Quick Answer
If one H1E earbud sounds quieter, remove its ear tip and carefully clean the speaker grille and microphone openings with a soft, dry brush. Place both earbuds in the charging case for about 30 seconds, then compare the sound in each listening mode.
Symptoms
Follow these steps if:
- The left or right earbud has lower volume.
- The volume difference is more noticeable in Transparency Mode.
- One side sounds quieter even though it still produces audio.
Before You Begin
You will need:
- A clean, soft, dry brush
- The H1E charging case
- Audio you can use to compare both earbuds
Important: Do not use liquids or sharp objects to clean the speaker grilles or microphone openings.
How to Fix Uneven Earbud Volume
1. Remove the Ear Tip
Carefully remove the ear tip from the quieter earbud to expose the speaker grille.
2. Clean the Speaker Grille
Use a soft, dry brush to gently remove any visible debris from the grille. Do not press debris further into the opening.
3. Clean the Microphone Openings
Gently clean all microphone openings on both earbuds using the soft, dry brush.
4. Return the Earbuds to the Case
- Place both earbuds in the charging case.
- Leave them inside for approximately 30 seconds.
- Remove both earbuds and reconnect them to your device.
5. Compare Each Listening Mode
Play the same audio and compare the left and right earbuds with:
- Transparency Mode enabled
- HellBlocker Mode enabled
- Both features turned off
Result: The volume should sound balanced between the left and right earbuds.
Understanding the Test Results
| Test result | What it may indicate |
|---|---|
| Difference occurs mainly in Transparency Mode | A microphone opening may still be obstructed |
| Difference occurs mainly in HellBlocker Mode | The issue may be related to HellBlocker |
| Difference occurs with both features off | The speaker grille, audio source, or device settings may be involved |
| Difference occurs in every mode and on multiple devices | Contact Heavys Support |
Why Microphone Cleaning Can Help
Transparency Mode uses the earbuds’ microphones to pass outside sound through. A clogged microphone opening can affect this feature and make one earbud seem quieter, even when its speaker is working correctly.
Frequently Asked Questions
Should I clean only the quieter earbud?
Clean the quieter earbud’s speaker grille and the microphone openings on both earbuds so you can compare them accurately.
Can I use liquid to clean the earbuds?
Do not apply liquid directly to the speaker grille or microphone openings. Use a soft, dry brush.
Why is the difference more noticeable in Transparency Mode?
Transparency Mode relies on the microphones. If one microphone opening is obstructed, the ambient sound passed through that earbud may be reduced.
Still Need Help?
If one earbud remains quieter after cleaning and testing every listening mode, email support@heavys.com and include:
- Which earbud is quieter
- The modes in which the difference occurs
- Whether cleaning changed the sound
- The phone, device, and app you tested
- Your current firmware version, if available