... with FM Radio,Alarm Clock and built-in 600mAh battery,SD/MMC/MS,USB flash, MP3,WMA Built-in Battery mini portable Speaker with SD/MMC/USB,FM Radio ... phone / computer / MP3 player, audio players and other music FM radio function Support NAND FLASH / SPI FLASH Support FAT16 / FAT32 file ... 2) 2 inch high fidelity speaker Digital volume control Built-in 600mA lithium ion battery, can play about four hours ...