Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Good headphones that only work with battery
Review: This is a good set of headphones. I also bought my first pair on Amazon.com; the headphones and the experience worked well so I bought the replacement pair on Amazon.com. I mainly use them for plane travel without the cord, because these days it is less common to find a music jack on a plane. Unfortunately, they only work with a battery. If the battery is flat or missing, or the noise-canceling circuit is switched off, the headphones do not work.
