... 4.Good price Hign quality Micro SD/TF usb mp3 speaker box 1)The mini audio box with ... new concept integral stereo portable mobile music, connecting your MP3, MP4, CD, DVD, iPod, iPhone, GPS, PSP ... ) Several power supply manners including battery, computer USB, adaptor DC-5V allow you to enjoy the ... Power supply: 5V/1000mA AC power adapter, Computer USB Power rotate connect line (can choose), Built in ...