Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cheap for a reason

Decent sound but the noise-canceling mechanism is poor. Powered by a AAA battery, it just "hums" out background noise and in the process decreases sound quatlity. Uncomfortable as well. I would either pay extra money for headphones that actually cancel out noise, or pay the same amount for headphones that are comfortable and have good sound quality.