Altec Lansing InMotion™ IM500 Portable Speaker system for iPod Nano Impossibly Thin speaker system for your iPod nanoImpressive sound and clarityWafer-thin design.67 inches thinAC or Battery-operatedsix AAA batteries for up to 10 hourCharges/syncs your iPod nanoSurprising bassFoldable dockweighs only 12 ouncesCarrying case includedPerfect companion for your iPod nanohome or travelOkay so your iPod nano is the coolest thing since the discovery of electricity. Want to know the second coolest thing? Then introduce yourself to the inMotion iM500 for iPod nano. It's compact lightweight and super-thin just like your iPod nano. So you can take it with you… wherever. And it features two custom full-range drivers plus built-in-bass-enhancement technology for stunning surprisingly clear sound. You can plug it in or choose battery power. And it syncs and charges your iPod nano.SoundAn amplified extension of youriPod nano the inMotion iM500 replacesheadphone listening and delivers highquality crystal-clear sound.MobileThe wafer-thin lightweight speakersystem that goes just about anywhereyou want to listen to music.DurableDesigned to be tough theinMotion iM500 is durable enoughfor the most rugged traveler.ChargedThe inMotion iM500 automaticallyrecharges your iPod when pluggedin and docked.UnpluggedThe inMotion iM500’s batterylife gives you complete freedom(AC adapter also included).