... stereo portable mobile music, connecting your MP3, MP4, CD, DVD, iPod, Phone, GPS, PSP Description:Features: This digital speaker can be ... stereo portable mobile music, connecting your MP3, MP4, CD, DVD, iPod, Phone, GPS, PSP, mobile phone, notebook computer, U-disk and ... 3dB)Loud speaker: 1.77inches(external diameter 45mm)Magnetic resistant: 4 OhmsPower supply: 5V/1000 mA AC power adapter, USB power ...