Samsung YP-T5V 256 MB MP3 Player 256 MB of flash memory; holds 4 hours of MP3 and 8 hours of WMA files (CD quality) Tiny player weighs just 0.85 ounces; measures 0.91 by 2.13 by 0.91 inches Compatible with Secure WMA from online download stores FM tuner with FM recording capability; line-in recording; voice recording Powered by 1 AAA battery for up to 20 hours; works with Windows and Mac OS