Function overview: 1. Wireless recording remotely 2. Super long time continuous recording 3. One button recording& playing 4. Four recording modes: LP: Long-time recording SP: Standard recording HP: High quality recording Wireless recording 5. Voice Activated Recording (VOR/VAR) 6. Listening while recording 7. Time setting 8. FM radio: Frequency response 87.0-108MHz 9. Automatic section-break 10. A-B repetition Specifications: Size：110mm*35mm*13.5mm， Weight: 57g Power supply：polymer battery 3.7V 1500mAh，super long time continuous recording Memory capacity：4GB-16GB Recording bit rate:ADPCM,32Kbps/128Kbps/192Kbps 4GB recording time：LP about 283 hours/SP about 70 hours/HP about 47 hours 8GB recording time：LP about 555 hours/SP about 138 hours/HP about 92 hours 16GB recording time：LP about 1110 hours/SP about277 hours/HP about 185 hours Support system：Windows2000/XP/Vista/7/8 Music format ： MP3/WMA