Under normal conditions, the earbuds offer approximately 8 hours of use in ANC mode and about 10 hours in normal mode (at 50% volume). Playback time may vary slightly depending on music content and volume level. When using the earbuds for calls, playback time will be reduced since calls consume more power than music playback. Please note that a difference of less than 1 hour between the left and right earbuds is normal.

If the discrepancy exceeds 1 hour, please try the following steps:

1. Ensure the protective film has been removed from the earbuds' surface.

2. Clean the charging contacts on the charging case and earbuds using a dry cloth/cotton swab dipped in medical alcohol to ensure proper connection during charging.

3. Verify the charging case has sufficient power, and the earbuds display normal battery levels while inside the case during charging.

4. Test battery life while playing music. Since ANC is enabled by default, switch to standard mode first if you need to test battery life in standard mode.

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