If you're experiencing low volume with your C40i earbuds, follow these steps to enhance your listening experience:

1. Adjust Wearing Angle: Position the speaker close to your ear canal by moving the earbuds toward your earlobe. If it's too far from the ear canal, it may impact sound quality.

2. Left and Right Ear Placement: Ensure that the left and right earbuds are worn in their designated ears.

3. Front and Back Placement: Ensure that the front and back of the earbuds are correctly oriented.

4. Test It in Different Environments: Sound quality can vary based on your surroundings, so try using it in different environments to see if the situation improves.

5. Check for Blocked Speaker: Ensure that the speaker is not obstructed by debris. If it is, clean the earbuds before use.

If you encounter any other issues or your issue has not been resolved, please contact us for further assistance.