Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Dont buy it!!! It works fine for a short while than it breaks

When I got the Sensa I was happy with it - sound quality was good, it was a small nice device. The problems started when I tried to upgrade my headsets to the Bose In-Ear headset. For some reason the Sensa is not compatible with those. After going back and forth for a while with SanDisk they eventually admitted that their MP3 player hardware has some problems working with Bose.But the problems did not stop there... Two weeks ago my Sensa just froze, no key would work and it would refuse to turn off. I had to wait a few hours for the battery to die before I could use it again.And the last problem - now my Sensa would not turn on!!! it just died while playing some music - I am on the phone with SanDisk support now, from my past experience I do not expect much help there....My only wish now would be to be able to return this junk and get my money back...