... ;perfect sound. Application for mobile phone, MP3, MP4, PC, etc. SD / MMC card Portable Mini speakerCan play SD / MMC card, U disk MP3 ... audio file format,.Can be connected to the mobile phone, MP3, MP4, PC ... .7cm;GW / NW: 34/33KGS;Accessories: USB cable, audio cable. Portable Mini speaker for mobile phone, MP3, MP4 ...