Bluetooth mp3 sunglass player features:
Bluetooth V1.2, Distance: 10 Meter

support various audio frequency format
Repeat downloading music, support MP3/WMA/WMV/ASF and other music format etc.

U-disk
Portable USB2.0 storage disk: No driver need above WIN98 system.

Top-class lens
Top-class sunglasses lens, Polaroid lens, optical lens for your choosing, resist
ultraviolet radiation and plated film.

Battery
Rechargeable 3.7V polymer battery, play MP3 for 4 hours continually.

Power saving
Automatic power off when it finish playing MP3 or it is in the stand by for 30 seconds.

Led light
Indicate different states.
Color:
Black, Silver
Accessories :
Users' manual,  USB wire, Charger, Car charger (optional),

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 Bluetooth mp3 sunglass player