Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What a piece of junk.

I bought this because I wanted a window for the controls, which the nike armband doesn't have. It says it's a wristband/armband, so I assumed it was elastic and could stretch, it can't. It's made for people with small arms, and barely fits over my wrist. They include an extender, but it uses such a small piece of velcro that it comes loose and drops your ipod if you look at it funny. Also, the window fogs up the instant you start sweating.If you have tiny wrists and never sweat, it's perfect. For me it's completely useless.