Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Horribly designed!

Possibly the worst design for an armband. A fifth-grader could make a better armband with felt, velcro, scissors and some thread. Not only can you not see the Nano screen, or adjust the volume while you are running (changing the volume is like trying to text message with gloves on), but you cannot adjust the tightness of the band with just one hand, it has too little elesticity and too small a velcro strip. To top it off, the Nano is kinda difficult to get in and out of the band.