Instruct: Classify Amazon reviews into positive or negative sentiment
Query: They just stopped working...

These were OK when i got them, minor complaint as I have big ears that flare out from my head, and they tended to squish then and as I'm travelling from chicago to Phoenix and back twice a week, they were uncomfortable after the first couple of hours...But the real problem appeared just a copuple of months after I started using them. The headsets would not keep a charge. I would plug them in to charge overnite prior to travel, and the blue lights would light up that it was charging. The next day, on hte plane, I'd thake them out and press the power button and they were dead.Because this would happen irregularly, I've stopped using them and carrying them as the are bulky. Going to find a different headset to use...