I gave the the battery life a 3 because one of the speakers I had, it lost the use of the battery completely. This thing gets jammed up when trying to take the bikes off. If I had not read those reviews I may have gone wrong on sizing. :)It’s fun to see a real (fake) bottom, up firm & high . 5mm cable. I use the $65. Wow do these run big and look super doofy. I’m still keeping them because they are very cute. What I love most about these is the comfort! after the first day I started getting really distorted audio on voice calls.