Instruct: Classify Amazon reviews into positive or negative sentiment
Query: worked well for about four weeks

I got this for Christmas from my kids. I loved it the first few weeks. I use it while running. After four weeks, the player shorts out, then resets itself and shorts out again. I've tried changing batteries and head sets, but this is obviously not the problem. I'm very disappointed, yet afraid to let my kids know it's not working properly since they just bought it for me six weeks ago. Prior to this problem commencing, it would lock up and I would have to uninstall the battery and reinstall it to get it to turn on. Buy the dell dj ditty instead, or an iriver or ipod nano. My husband got the ditty and my kids the nano's they work great. More money, but mine is now basically worthless after just six weeks.