... your health Feature:Plug-card style, hi-fi, digital, stereo music wireless headphoneHigh-energy battery, support long playFunctions for card reader:directly ... download studying materials or musicDigital stereo music, foldable and easy storage compatible with MP3, WMA, WAV ... :16.5*7.7*19 cm Package:1 x Card Wireless Headphone1 X USB Adapter Thanks for Visiting, Please send us ...