speaker 1.Suitable for MP3/MP4/IPOD/PC etc 2.Output: 2X3W Digital Audio ... USB cable, 1 line-in cable Description: * Suitable for MP3/MP4/IPOD/PC etc * Output: 2X3W Digital Audio Power Amplifier ... .Mini, portable digital speaker for your convenience, connecting to your MP3,MP4, CD, DVD, iPod, iPhone, GPS, PSP, mobile phone, ... sound speaker box/ professional speaker/mini sound speaker for MP3 format music