Key specifications:

1. Power adaptor input voltage: 100-240V 50/60Hz 
2. Power adaptor output voltage/current: DC 9V/1.5A
3. Charging voltage/current for your iPod or iPhone: 5V/1A
4. Output power: 5W×2 RMS(When connected to Ac Adapter)
5. Frequency response: 60~20000Hz
6. Aux input sensitivity: 900mV
7. Channel separation: ≥40 dB
8. Dimensions: 204 (L)×118(W)×208(H)mm

Special features:

1. It is a great sound quality speaker system to enjoy music from your iPod or iPhone.
2. Easy-to-use touch button for play/pause, previous/next track, volume up/down.
3. 3.5mm line-in jack for easy connecting to a variety of audio sources, such as a MP3, MP4 or CD player etc.
4. It is powered by 4 AA batteries or AC power adaptor.
5. Retractable dock charges your iPhone and iPod when connecting to AC power.