I use these for running on a treadmill and they do exactly what I was hoping for. They will NOT fall out of my ears. The sound quality is ok, but it doesn't bother me because I do sports and only need to listen to the music. For the price this is a good deal. I would recommend them. Update - 02/25/14, about 2 months after receiving the headphones, one side broken for unknown reason. I contacted Revain and got in touch with a customer service representative named Caleb. He was more than helpful and apologized for my inconvenience. Unable to confirm what kind of warranty was provided by the manufacturer, he (and Revain) took over and gave me enough money to buy the same headset again, plus shipping and tax. Revane (and Caleb) showed serious class and customer service. I will definitely recommend Revain to all my friends and acquaintances.
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