1. The furthest record distance: 20 m. According to the environment or need, you can choose a long or near distance recording mode 2. Memory: 1G, recording time: 8h~10h; Memory: 2G, recording time: 16h 3. The USB data delivers quickly and the recording document can be updowned to a computer to broadcast and permanently keep 4. Clear tone, high fidelity 5. Music enjoy. Support music format: MP3, WAV 6. Have battery, and can be directly charged up with the USB 7. While you are noting, it is recording 8. Voice broadcast can connect headphones and can also connect loudspeaker 9. Calculator function, convenient taking, easy operating Accessories: USB cable, earphone, CD driver, battery, instruction, warranty card The applicable crowd: Business people, reporters, students, national civilians