I opened my first one, charged it and then tried to turn it on but it didn't work. After spending 10 minutes trying to get it to turn on I eventually gave up and shipped it back to Amazon. My second one worked for about a month and then began to lock up when I would charge it. Unfortunately, it's out of the 30 day return policy for Amazon and so I'm going to have to deal with iAudio to get this one fixed.