soundcore by Anker Liberty 4 NC Wireless Noise Cancelling Earbuds, 98.5% Noise Reduction, Adaptive Noise Cancelling to Ears and Environment, Hi-Res Sound, 50H Battery, Wireless Charging, Bluetooth 5.3

Product Information

Make sure the charging case has enough power, and the ear tips are not blocking the charging pins on the earbuds. When the battery of the charging case is at 0-20%, the light in the middle of the charging case will turn red for 5 seconds and then go out.

Noisy environments get an extra layer of dampening, so even when I was exercising with equipment at a very busy gym, nothing was distracting me from my playlist. Use a dry cloth/cotton swab with rubbing alcohol to clean the charging pins in the charging case and on the earbuds to ensure a better connection. Use a Q-tip with a bit of rubbing alcohol to gently clean the metal mesh filter under the rubber ear tips. Charge your charging case with a different charging cable and wall charger, and make sure the charging case has enough power. When the charging case is fully charged, all the white lights will stay on for 5 minutes and then go out.If the indicators in the charging case don't light up, please check whether the charging case and earbuds are properly connected, have enough power, and you can also clean the charging pins with a dry cloth. If the problem still persists, please provide your phone model and the Serial Number on the app so our team can investigate further. Try testing your earbuds with a different Bluetooth device in a different environment to see if there is any difference. Overall not as good as the 2s but I’ve lost them now so will hope that XXL tips become available for the 4.

Test the earbuds in a different environment and with a different Bluetooth device to see if it makes any difference. Ensure that the audio output device selected is "Liberty 4 NC" on the connected device and turn up the volume on your device. 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.

Normally, the earbuds can be used for around 8 hours in ANC mode and 10 hours in Normal mode at 50% volume, but playtime may vary slightly based on the music content and volume. The earbuds keep connecting to the device even after being put back in the charging case with the cover closed.

If the earbuds are not worn properly in your ears, you may not experience the best bass performance.When you first use these earbuds, remove the protective film covering the charging pins on the earbuds. If you take the earbuds out of the charging case and don't wear them or connect them to any device, they will turn off within 30 minutes.