... /SD card slot Digital portable Mini speaker for Iphone, computer,CD, MP3 & Mp4 mini speaker, computer speaker, speaker,mini computer speaker, ... with new concept integral stereo portable mobile music, connecting your MP3, MP4, CD, DVD, iPod, iPhone, GPS, PSP, mobile phone, ... Speaker: 1.77 inch (external diameter 45mm), Magnetic resistant 4 Ohms*Power supply: 5V/1000mA AC power adapter, Built in ...