Altec Lansing inMotion Portable iPod Speakers - Speaker dock - for portable use - 4 Watt (total) - for Apple iPod (3G, 4G); iPod mini

You've got gazillion hours of music stored on your iPod but until now, you've been the only one dancing. Altec Lansing inMotion is an ultra portable, battery-operated stereo system is the first powered audio system designed exclusively for the iPod. A highly efficient Class D amplifier powers four full-range micro drivers to deliver a full spectrum of pure, distinct sound, while the revolutionary MaxxBass technology allows listeners to enjoy deep bass without lugging around a subwoofer. Best of all, connectivity is as easy as placing your iPod into the built-in dock or connecting it through the auxiliary port.

Altec Lansing 2.0 Speaker System, 4 W RMS Input Voltage: 110 V AC Satellite/Speaker Weight (Approximate): 15 oz Satellite/Speaker Weight (Approximate): 15 oz Speaker Configuration: 2.0 Maximum Frequency Response: 20 kHz Minimum Frequency Response: 60 Hz Satellite Speaker Width: 8" Satellite Speaker Depth: 5.40" RMS Output Power: 4 W Headphone: Yes