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. If your earbuds haven't been used for a long time, please make sure you charge them for at least 2 hours to see if it helps at all. If you still can't connect using the steps above, provide the mobile phone model, app version, screenshots in Step 5, mobile phone system region, and language settings. Soundcore has a variety of high-quality headphones and earbuds, and the Liberty 4 NC is a great demonstration of that. 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 clean the charging pins with a dry cloth.

Go into the region of the system, switch to English (United States), and switch the system language to English (United States). If there is a pop-up window to confirm pairing for "soundcore Liberty 4 NC," please select "pair" If you accidentally select "cancel" you need to refresh (turn off and turn on) the Bluetooth of your device and pair the earbuds again. Charge the charging case with a different charging cable and wall charger and make sure the charging case has enough power.Turn on absolute volume in the developer options or select "the Bluetooth device volume to sync with the phone" in the Bluetooth settings.

Replace the ear tips with ones that fit more snugly in your ears and ensure that you are wearing the earbuds in the correct position to create a tight seal. To check if you're wearing the earbuds in the perfect position, take the Fit Test on the soundcore app or check the Quick Start Guide for more information.If you cannot adjust the volume on the app, please select "Liberty 4 NC Hands-Free" as output on your computer and adjust the volume.

Whenever I started talking while wearing these, I could feel the cancelling effect lift a little, allowing me to hear what I was saying without issue. I like to listen to music or podcasts wherever I go, but I rarely have an ideal listening environment. If the indicators on the charging case don't light up, please check whether the charging case and earbuds are properly connected, have enough power, and you can clean the charging pins with a dry cloth. 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.That's a pretty big claim to make, so naturally, we're curious to see if it can live up to those high expectations. Note: Battery playtime is obtained from testing in the Anker laboratory using the earbuds' default settings, in normal mode, and 50% volume.

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. Make sure the Bluetooth device and earbuds are within Bluetooth range, and there is no signal interference between them. The left and right white lights in the charging case flash quickly, indicating that the earbuds are in pairing mode and can be paired with a Bluetooth device. When you place the earbuds in the charging case, there will be white LED indicators which confirm the earbuds are properly connected to the charging case. When you place left and right earbuds in the charging case, there will be white LED indicators which confirms the earbuds are properly connected with the charging case.

If one of your earbuds doesn't fit well, please try a combination of the ear tips, such as medium in the left and large in the right.