... &D,manufacturing of multi-function card headset.headset sports wireless mp3 player,building 15 engineers R&D team including software and hardware ... ,WMASupport the maximum memory card capacity32GBSupport music sample rate8-48KHZ(MP3 Bit rate,8-448kbps,WMA Bit rate,32-384kbps)Play ... . 5. Warrant,One Year. 6. CE, FCC, RoHS certificates 7. Inner box siz,125*9*125 mm. muli-function card headset mp3 player