2 in 1 2gb mp3 and bluetooth sunglassesfeatures:2gb flash memorybluetooth phone talk can listen music from sunglasses built-in 2gb memorynote (not support the mobile music through bluetooth)High quality lenses provide the  best protecition for eys in.  Effectively prevent ultraviolet  rays,

2 in 1 2gb mp3 and bluetooth sunglassesfeatures:2gb flash memorybluetooth phone talk can listen music from sunglasses built-in 2gb memorynote (not support the mobile music through bluetooth)High quality lenses provide the  best protecition for eys in.  Effectively prevent ultraviolet  rays, bewildered light and  harmful blue light.Anytime you  wear it very clear.Support 2GB memorySupport of MP3/WMA/WMA/ASF  diversified formats and VBR  compressionUSB 2.0 high-speed interface  with faster and convenient  transferFreely telescoping boom  speaker,270 rotatable,freely  adjustable and comformatable  wearingMax Volume: 88db with a better  sound qualityBuilt-in Li battery,support to  play MP3 3-5 hours  continuiously,Bluetooth standby  time is 30 daysSuitable for various operating  platform and potable with  compact sizeComply with Bluetooth protocol  V2.0System requirementHardware: IBM PC/AT or  compactable PC or laptop  computer with USB cableOperating system: WINDOW  98/SE/ME/2000/XP or aboveMemory: 2GBMusic format: MP3.WMA,ASF,WAVInterface: USB 2.0