1. High quality MP3/WMA play 2. External Voice Recording (WAV) 3. Built-in FM radio (FM Radio Recording) 4. Supports SD/MMC card for memory expansion 5. Capacity: 64MB/128MB/256MB/512MB/1GB 6. Display: LCD display with blue backlight 7. Built-in Microphone 8. Text/ID3-Tag Display 9. 6 Repeat mode/A-B repeat 10. 6 EQ Selections 11. Battery: 1xAAA 12. Interface: USB2.0(Full speed) 13. Dimensions:90x38x25mm