Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Returned it after trying it for a couple days..

Pros:* Eye candy - it's a cool looking headset.Cons:* Audio level at its highest level is low. I had to push it against my ear to hear better.* It didn't feel very secure on my ear. Slight head movements can make it move around/off the ear.* People I called sometimes complained of an echo.