Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worthless Product

This pedometer did not work at all for me. The first time I tried it, I counted my own steps -- I took 800 and it recorded 28. The next time, I took 500 and it recorded 23. It was more accurate when I just held it in my hand. I put it in my desk drawer, and it recorded over 900 steps just from me opening and closing the drawer.