1. A, B, C, D four folders, can store 4x99 recording folders
2. Can choose HQ, SQ, MQ, LQ four recording modes in every folder
3. Show recording time/ residual time
4. Previous or next, speed change when playing
5. Single circuit playing , f older circuit playing, A-B repeat playing.
6. Date/ Clock function (12/24 Hours system)
7. Digital volume control
8. Can delete single file or all
9. VOX function.
10. Recording files can be edited
11. Telephone recording, built-in microphone recording, external microphone recording
12. Reminding function when residual time less than 10 minutes in memory or SD card
13. Sleeping function: Unit will be sleeping when no operation in 60 seconds
14. USB function (USB1.1) .
15. Attached PC operation software, can switch format between DVR and MP3/ WAV
16. Built-in high fidelity speaker (1W) .
17. Password locking (protecting when play, delete and connect with computer)
18. Three ways for power supply (USB, DC transformer, 4 PCS AA battery) .
19. Two ways to save files (memory, SD card) .
20. Super long time recording (HQ 256MB=18 hours, LQ256MB=100 hours) .