Pro Reviews:
TrustedReviews.com has a review on the Sony NW-E507 Network Walkman and they write -
"At the base of the Sony NW-E507 is a plastic cover that hides the mini-USB port. This is used for both data transfer and charging. And talking of charging, Sony claims that you can get three hours of playback time from only three minutes of charging – pretty cool if you’re on your way out and find that the battery is flat. That’s unlikely though, since the battery life is truly astonishing. I took this player out to Taiwan with me while I was attending Computex."

Silicon Pop Culture has a review of the Sony NW-E507 MP3 player and they write - "As one of the first new portable digital audio devices from Sony designed using the company’s MP3-friendly mantra, the NW-E507 does a great job. It’s an excellent piece of hardware that’s somewhat hobbled by transfer software. As a supposed competitor to Apple’s iPod shuffle, it stands out for its functionality, long battery life, and style. "

The NW-E507 is available for $199 and there is also the E505, the 512mb version, available for $149.

Product Specifications