These ones batteries are terrible, the right side of mine is only half volume max after 6 months and sounds fuzzy. They NEVER want to charge in their case. I mean like never ever ever ever want to properly charge. Ive bought a second pair, lets hope its better ive always liked your products before. For reference I do lawncare full time 12 hour days 6 days a week and your older models would hold up better than these.
I have a bad pair of ear buds right the box. Upgrade frimware, and no change in the problem. The right one is not working on the touch pad of the buds.