Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Small but protective

I wanted as small a case as possible, not to smooth so as not to slip out of my hand, with one small compartment to fit a set of earbuds. Oh, and a removable belt clip would be good. This was one case that definitely satisfied those requirements. It won't let you see the screen but, as long as you don't need to control playback all the time, this will be very practical.