1. U-disk, can repeat downloading music, support MP1/MP3/WMA/WMV/ASF/WAV  and other music format etc.
 2. Polarizing lenses, top-class sunglasses lens.
 3. Full auto-searching FM radio.
 4. Continuously work for over 6 hours.
 5.   Earphones have flexibility and can be fixed within an angle of 270 degrees at random