If you place the left and right earbuds in the charging case and the LED indicators on the charging case flash white, it means they are connected properly. Change the ear tips to ones that fit more snugly in your ears and make sure you're wearing the earbuds in the correct position to create a tight seal.

If you only want to listen to the audio on the computer, select "soundcore Liberty 4 NC Stereo" for the computer audio.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.

Test your earbuds with a different Bluetooth device, app and downloaded music/video to see if the problem still persists. 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.When resetting the earbuds, make sure the earbuds are well connected with the charging case, or it may cause the reset to fail. Unfortunately none of them XXL so the tip test still reveals a poor seal and when exercising they occasionally fall out. 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.

Find the most suitable ear tips for your ears, then check the bass to see if it has improved at all. If you cannot adjust the volume on the app, please select the Soundcore Liberty 4 NC Hands-Free as output on your computer and adjust the volume. If one earbud feels stable and the other does not, try a combination of ear tips such as medium in the left and large in the right. Access the Bluetooth settings on one device and disconnect the earbuds from the list of available devices.

After the update is completed, you will notice an LDAC icon on the Liberty 4 NC interface in the soundcore app. Turn on absolute volume in the developer options or select "the Bluetooth device volume to sync with the phone" in the Bluetooth settings. It's important to note that there may be a slight delay when using Bluetooth headphones, which is a common limitation of Bluetooth technology. Replace the earbud 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. If one of your earbuds doesn't fit well or comfortably, please try a combination of ear tips, such as medium in the left and large in the right.