What if only one earphone has sound?
If two Bluetooth names are detected after turning on the power, or if you connect to Bluetooth and only one ear makes a sound, disconnect the Bluetooth connection with the mobile phone and press and hold the function button on the left and right earphones at the same time. Turn off the power. After that, press and hold the function buttons of the left and right earphones at the same time to turn on the power, and then double-click the function keys of the left and right earphones. Then press and hold the function button on the left and right earphones to turn off the power. Finally, press and hold the function button on the left and right earphones to turn on the power, and then wait for 2 to 3 seconds to automatically pair. If the earphones are waiting for pairing and have not been connected via Bluetooth for more than 3 minutes, they will automatically shut down after 3 minutes.
Precautions for charging
Before using, please make sure that the two earphones and the charging case are fully charged.
1. After using for a certain period of time, if the contacts oxidize and the earphones cannot be charged or the power cannot be turned on, wipe the earphone contacts and the two bottles on the charging case with alcohol and a cloth.
2. When you put the earphones in the charging case correctly, the charging case will start charging the earphones (you can charge the charging case and earphones at the same time. After fully charging the charging case, use the charging case to charge the earphones. You can also charge it. When the earphones are fully charged, the charging case will automatically stop charging and the earphone indicator will turn off). When you remove the earphones from the charging case again, the earphones will automatically turn on and pair.