Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I loved it until I lost it two weeks after owning it due to bad belt clip design

The case has what seems to be a neat function with interchangeable items such as a belt clip or desk stand, but since it is interchangeable it's also faulty. I was not listening to my player while riding on a crowded public train and when I got home all I had left was the belt clip itself. Not sure if it just fell off or was taken, but either way, I'd suggest not using it if you want to keep it.