... or usb disk USB Speaker,outdoor speaker KZS-S018Other relative products: USB Speaker,car speaker,mini speaker,active speaker,portable speaker,computer speaker,MP3 speaker,MP4 speaker, SD card speaker,MMC card speakerUSB Speaker ,outdoor speaker ... read SD card, U disk. Portable SD card speaker for MP3,MP4,MP5.PC,notebook Fashionable and beautiful design, smart, and easy ...