Portable Speaker for iPod Shuffle/Mini/Nano MP3/CD/MD/PC [Personal Computers] Power Supply: Battery(AAA 1.5V*4, NOT included); AC adapter(Output 6V, 300~800mA, NOT included); and USB cable connect for PC(included) Speaker Unit: 50mmx2W*2(4 Ohms)**Output Power: 0.9W*2(1KHz 10% THD) Signal Cable: 22cm with 3.5mm ST Gold-plated plug**Frequency Response: 150Hz~18KHz Dimension: 207(W) x 53(D) x 62(H) mm--Open dim. Please note that we will ship from Hongkong!