Sony MZ-E909 MD Walkman Player (Silver) Full-magnesium body for high style and durability Easy Skip group/folder navigation grants simple navigation between MD file folders; plays ATRAC3, MP3, WMA, and WAV files Up To 145 hours playback with rechargeable battery (NH-14WM[A]) and 1 AA Alkaline battery (in LP4 Mode) Personal Disc Memory stores preferred listening settings for your favorite MDs Includes a backlit LCD stick remote and battery-charging stand