A:Answer Normally the left earbud connects to the right earbud automatically when you take them out of the charging case. During daily use, the earbuds may sustain a lot of contact with hands and moisture, which can cause interference with the connection. If you happen to have only one earbud makes a sound, please try the tips below.
We now have two versions of this item, and the serial number (SN) is located in different places on the different versions. The SN looks something like "SN: ABC123XXX".
- If the serial number is printed inside the charging case, search "h0g9UZIEgJo" on YouTube for detailed steps on how to reset the headphones. Make sure there is a red light flashing 3 times after you hold down the touchpad for 7 seconds.
- If the serial number is printed on the charging cable that came with your earbuds, please search "4rNVJooT1KU" on YouTube to follow the detailed steps to reset the headphones. Make sure there is a red light flashing once when you quickly tap the touchpad on the earbud 4 times, which means the reset was successful.