1. Easy to use plug and play no drives needed support U disk2. Charging time: about 1 hour3. Working time: about 10 hours on one charge4. Can store up to 96 hours of audio5. Charging: connect the USB interface to computer6. Digital voice recorders that are compact and pocket sized unobtrusive and simple to operate clear voice recording7. You can use it as a portable audio recorder to record anything or simply use it as a MP3 player to listen to your favorite songs8. Straightforward operation features auto save so your recordings are saved instantly when the earphones are plugged in it automatically enters playback mode and you can review your file9. Recording format: WAV10. Music format: MP3 WMA WAV11. Sampling rate: 48KHZ12. Number of digits: 192KBPS13. Battery capacity: 100mA14. Product size: 46x18x6mm