If I could leave 0 stars I would. Initially, I had no problems with my powerbeat pros (besides wind tunelling when riding or running), or the app. But just after 1 year, the app constantly glitches, sometimes saying that one of my earbuds is on 0% charge, then that the case is flat but the earbuds are at X%, but as soon as I take an earbud out it won't connect and says its flat again etc. It seems to be a software issue, but I have stayed up to date.