... Music Player Frequency response: 20-20KHz FM Mini Portable Speaker USB Disk SD/MMC Music Player FM Features:With ... woof.Supports music play on SD/MMC cards, USB flash disks, and other music players with 3. ... power adaptor Not included)Interface: 1 x mini USB (DC in), 1 x USB (USB flash disk), 1 x SD/MMC, 1 ... fees caused by return and exchange. FM Mini Portable Speaker USB Disk SD/MMC Music Player FM