Hi there,
I'm a bit confused because the manual says that the charge is over 30% when the led on the charging case turns from red to green. However, If I leave the USB cable attached to the case for, say a couple of hours or for the night, the led on the charging case has turned red again - indicating I need to charge the earbuds. But when I disconnect the USB cable, the led turns green again. And I've noticed some variation on how long I can use the earbuds before I get the "battery low" warning. What does the red light indicate in this case? That the charge is 100%. Wouldn't it be simpler if there was a different color led for indicating that the charge is 100%?