Support Center

1. Use a dry cloth or cotton swab with a bit of rubbing alcohol to clean the charging pins in the charging case and on the earbuds to ensure a better connection.
2. Charge your charging case with a different charging cable and wall charger, and make sure the charging case has enough power.

Due to different usage habits and varying battery health between the left and right ears, it is normal for there to be some difference in battery consumption between the two earbuds during use.

1. Clear the pairing records between the headphones and all of the previous devices.
2. Re-pair your headphones and the device.
If that doesn’t work:
- Try pairing with another device to check for compatibility issues.
- Ensure there are no objects blocking the Bluetooth signal.

Please note that this may not indicate an issue with the headphones themselves, but could be related to the connected device or your environment. Bluetooth signals can be affected by obstacles like walls, appliances, Wi-Fi interference, and more. To ensure a stable connection, try to minimize such obstructions.
To resolve the issue, follow these troubleshooting steps:
1. Fully charge and reset your headphones
2. Check the performance by listening to downloaded music or videos to avoid potential streaming issues.
3. Test the headphones with another Bluetooth device in a different location to see if the issue persists.

No, QCY Crossky C30 uses air conduction.

No, they cannot. The ear clips can be connected to two devices at the same time using Dual Connection, but they can only play audio from one device at a time.

Yes, they can be used directly upon being taken out of the case, including when only removing a single earbud.

To connect two devices:
Step 1. Pair the headphones with device A.
Step 2. Disable Bluetooth on device A, and the headphones will enter pairing mode.
Step 3. Pair the headphone with device B.
Step 3. Re-enable Bluetooth on device A and reconnect to the headphones.
After this initial setup, the headphones will automatically connect to both devices next time.

You can use an alcohol pad or a regular wet wipe to gently clean the surface. Please do not soak them in water.

Try to re-pair your headphones: Clear the pairing records on your phone, then re-pair the earbuds to your device.

We recommend trying the following steps:
- Verify that the audio output device on your phone is set to "QCY Crossky C30"
- If you're making the call through an app, try making a direct call using your phone's regular calling feature to check if the issue persists.
- Test your earbuds with a different Bluetooth device in a different environment to see if the problem improves.

You can try the following troubleshooting steps:
- Check the audio source: Test different types of music and make sure the audio source is clear and free of distortion or noise.
- Customize the EQ settings: Use the QCY app to try different EQ modes or customize the sound profile to suit your preferences.