Negative Positive
Title: Just returned mine
Review: I could not get this thing to run for more than 20 minutes. I calibrated the batteries 3 times but it would run out waaaay before the "10 hours" claimed by the manufacturer. After the 3rd calibration, it played for a few minutes before the sound completely cut out. I tried the headphones on another unit and they worked just fine, which leads me to believe the problem is with the Rio. Maybe I just got a dud.
Is the review positive or negative? 