1. Real chronographic steel body watch with built in microphone for voice recording. 2. Built-in 256M Flash Memory. 3. up to 16 hours recording time 4. Can play / record / download from internet all kind of MP3 songs. 3. 4 Pin USB round port. 4. More than 9 hours continuous playing time when fully charged. 5. USB1.1 (Maximum 5Mbps) USB transmission rate. 6. 20HZ to 20KHz output frequency rate. 7. 4MW+4MW Earphone output. 8. Window98/Me/NT/2000/XP Operating Platform. 9. Built-in Hi Li-ion rechargeable 150mAh/3.7V battery. 10. on board powerful microphone for hidden recording.