Given the task definition and input, reply with output. Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.

It works perfect with my lg trax cu575. It is fast though this is the only one I have used so I do not really know that but it seems fast. I can not believe how small it is! But anyway, it works good and is really cheap. You can fit 500 songs on your phone with one of these so I really reccomend it.
Positive Review