How to Use ONE Earbud Only
Either Earbud can be used independently without the other.
Step 1. Make sure you have previously connected the earbuds with your phone as a TWS pair first.
Step 2. Next - remove the earbud you want to use from the case and it will automatically reconnect with your phone.
Note: when you use one earbud, R earbud controls volume up and next track while the L earbud controls volume down and previous track.