型号:MD550类型:MP3存储介质:闪存(FLASH)128M至4GB可选音乐播放:支持MP3、WMA等格式音乐超长播放:插耳机开机,内置大容量锂电池且锂电池,外出携带方便固件升级:超强稳定,支持固件升级.颜色:浅兰、白色、粉色等8种颜色配件:包装、高保真耳机、数据线、说明书白色 Function:MP3PlayerInterface:USB2.0,3.5MMEarphonePowerbuilt-inli-ionbattery,energysavingdesign.WithsmilemouthColorlightblue,lightpink,blue,Chinesered,darkblue,rosered,white,lightgreen,blackAccessoriesCrystalCase/Earphone/USBLine/UseManuallSpeciality:noscrewsontheoutshell,eightLEDfacialexpressions 大红 紫色 黑色粉兰