Summary: I have waited several months to submit a review because I needed to see how well it worked for me. I go to the gym 4 - 6 times a week, and am a heavy sweater. Sweat is very corrosive like sea water and many audio devices I have had in the past did not survive very long. I'm happy to say that even though I've gone through several pairs of ear buds, the iPod works fine and is showing no signs of corrosion.
Summary: When it works, I love it. My product came with a messed up headphone jack. I get real bad feedback sometimes. Anyway, it's so compact and clips right on ur pants or shirt. I will probably buy another when this one dies.