1) support various audio frequency format Repeat downloading music, support MP3/WMA/WMV/ASF and other music format etc.
2) Recording and repeating Repeat recording, including inner or outer recorder and A-B repeat reading function.
3) FM stereo radio Full auto-searching FM radio, the defaulted normal FM band is 87.1~108.0 Mhz.
4) U-disk Portable USB2.0 storage disk: No driver need above WIN98 system.
5) Wireless earphone and monitor function(additional) External emitter, the glasses could be used as a wireless headphone and monitor.
6) Top-class lens Top-class sunglasses lens, Polaroid lens, optical lens for your choosing, resistultraviolet radiation and plated film.
7) Battery Rechargeable 3.7V polymer battery, play MP3 for 4 hours continually.
8) Power saving Automatic power off when it finish playing MP3 or it is in the stand by for 30 seconds.
9) Led light Indicate different states.