MP3 headset can read SD/MMC/MINI SD/TF card music, ... : > 80dB Speaker input power:2x10mwUSB interface:USB2.0Support aduio format:MP3,WMASupport card:SD,MMC (MINI SD or TF card which ... Li-ionPlay SD/MMC/MINI SD/TF card music,support MP3,WAV audio format.Connect with PC,can read and write ... sound Fashional and beatiful apperance,wearing more comfortable Z-868 MP3 headset player with FM radio