1. Built-in sensitive microphone for audio monitoring2. Real time recording in AVI video format3. External memory: 2GB / 4GB / 8GB / 16GB for option4. Play back video on PC;5. Built-in rechargeable Li-battery6. CMOS chipset with 0.3 mega pixels;7. Video Compression: AVI Video Format, VGA640*480(regular)/720*480 version, or OEM HD version8. 30fps+-,9. Photo Format: 1280*1024(regular)or as request10. Adaptor Type: USB simple AC adapter with USB cable ;11. Color optional: Silver/black