I have two pairs of Powerbeats and I've owned a few more over the years - they are great for working out, good sound quality with some basic Siri interaction and they stand up to moisture and sweat well. However, the charging case was an abysmal failure. About 50% of the time, on any of the many pairs I've had, one of the earphones will not be charged due to poor contact with the case. There's no light or indication of poor contact, because as long as one makes contact the red charging light comes on. So, you either work out with one or you wait 5-10 minutes to get enough power to go ahead. Also, about 50% of the time when you put them on, only one will chime and connect to your device, which requires you insert them back in the case for 5 seconds, then try again until both connect and chime in stereo. It's the most aggravating thing considering the price I paid. And its not one pair, they all behave identically, so I know other people have experienced these issues.