The Altec Lansing inMotion iM3C portable audio system. This paper-back-sized, ultra-portable, battery-operated stereo system is the perfect companion for your 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 or iPod mini into the built-in dock or connecting it through the auxiliary port.