PC Stats posted a review on the Samsung Yepp YP-U1ZB 1GB MP3 Player

The aptly named Samsung YP-U1ZB MP3 player is no larger than an iPod Shuffle, has 1GB of memory (good for about 330 songs at 3MB apiece), and unlike the screenless iPod Shuffle utilizes a nice black and white back-lit LCD display that's actually legible in direct sunlight. The Samsung YP-U1ZB draws power from an internal rechargeable Li-polymer battery (non-removeable) that puts out roughly 13-hours of music. Best of all, the whole contraption recharges right in the USB slot with the same USB2.0 jack it uses for moving data.

Samsung Yepp YP-U1ZB 1GB MP3 Player Review