Satellite RMS Power /ea: 1.5 Watts Driver: 2" full range drivers Frequency Response: 100Hz - 20KHz Signal to Noise Ratio(SNR): 70dB Features: Compatible with any iPod with dock connector Portable Digital Docking Speakers Fabric Travel Pouch Xtreme Bass Charges all iPods when docked (except iPod Shuffle and 3G iPod) Operates on 4 AA batteries & AC adapter