Features:1. New aluminun diaphragm micro-speaker with clear terble and pure bass. Acoustic design makes good sound quality.2. Ergonomic design with screen makes the operation more convenient and easier. 3. New integrated design can play music of micro SD card directly. It also can be used as external audio to connect with your MP3, MP4, CD, DVD, Ipod, iphone, GPS, PSP, celephone and notebook. 4. Built-in high-energy battery and a variety of power supply such as computer usb and adapter DC-5V let you share music anywhere and anytime.

Parameters:out put:rms6w(3w+3w)THD=10%frequency response:150-18000HZ(±3db)signal and noise ratio of power amplifier.≥80dbloud speaker:1.77inch(external diameter 45mm)magnetic resistant 4 ohmsline in:configure3.5mm stereo's plugspower supply:5V/1000mA,ACpower adapter.usbpower rotate connect line(can choose)

Docking Station Music Stereo Speaker for iPhone3G/3GS