1. Compact and portable, easy to use 2. Comes with built-in time synchronization software, which can search for specific recorded times 3. After one charge, it can record for about 5-10 hours 4. Frequency: 20Hz-20KHz 5. Transmission interface: USB 2.0 6. Sampling frequency: 45KHz 7. Bit rate: 384Kbps 8. Battery: Rechargeable lithium battery 9. Charging time: 1-2 hours 10. Recording distance: 10 meters 11. Recording format: WAV 12. System support: Windows 2000/XP/Vista/Win7, Mac OSX 10.3, Linux Redhat 8.0 and above 13. Shell material: ABS 14. Product size: 70x21x9mm 15. Product weight: 30g