512MB MP3 Flash Player with SD Card Slot & Interchangeable Battery Cases

512MB Flash Memory Stores Up to 21 Hours of Music
Audio Playback (MP3/WMA/WMA/DRM/WAV/Audible/Janus Compatible
Interchangeable Battery Cases 4 Covers Included
Connect and Control this Device via a USB Connection
SD Card Slot (SD Card Not Included)
Multi-Function Multi-Line OLED Display
Display Lists Artist Song Elapsed Time Volume and Battery Life Indicator
Dimensions (WxHxD): 2.13 x 0.47 x 2.09
Weight: Product: 0.09lbs