Specifications for the RCA M2000 512MB MP3 Flash Player with SD Card Slot & Interchangeable Battery Casesangeable 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