... Ohms Power supply: 5V/1000mA AC power adapter, Computer USB Power rotate connect line (can choose), Built ... sound. This compact travel speaker system is ideal for use at the office, home, Carry where you ... music, connecting your MP3, MP4, CD, DVD, iPod, iPhone, GPS, PSP, mobile phone, notebook computer, U disk ... and SD card etc. Package Includes:1 x Mini Micro SD Card Speaker for MP3 ...