Memorex SpongeBob digital music player + 512MB flash memory. Player media type: flash-media, Total storage capacity: 0.512 GB. Audio formats supported: MP3, WMA. Line-out connectivity: 3.5 mm. Continuous audio playback time: 10 h. Dimensions (WxDxH): 58 x 18 x 58 mm, Connectivity technology: Wired