... player music Shenzhen Liankechuang beautiful Hifi sound systemL HOME portable iphone speaker with line-in functionProduct Description Output Power:RMS 4W( ... or adapterDC-5V supply powerCompatible with USB drive, mp3, mp4, mobile and laptop, etc.Portable speaker advantages,High fidelity,Dual ... SD/MMC/MS card, USB device,Compatible with MP3/ MP4/ PC, and mobile, etc. Portable, it’s a good choice for ...