Advanced digital signal processing amplifier foroutstanding sound reproduction Product InformationEnhance your iPod with the Sonic Impact i-P23 portable iPod speakersystem.  Make a statement wherever you go in this speaker system zipperedcase.  The i-P23 features a bass port battery compartment and integratedalarm clock to wake up your iPod along with a sleep mode variable timer to turnoff your iPod.  It provides up to 24 hours of battery life.  Ideal forprotecting your speaker system while on the go.  Product Features A built in universal dock for iPod (3G 4G and iPod mini well adapters included).  Displays and plays your iTunes. Alarm clock function wakes up your iPod.  Sleep mode variable timer turns off your iPod. Up to 24 hours battery life using 4 'AA' batteries (not included).  Optional AC power supply included. The i-P23 uses twin neodymium speaker drivers with aluminum cones manufactured for Sonic Impact specifically to enhance your digital tunes. An advanced digital signal processing amplifier provides the ultimate sound reproduction. Patented Maxxbass psychoacoustic technology and a ported cabinet will enhance and maximize bass response. The i-P23 is made with a durable hard cover case that will store and protect your speaker system when traveling. Minimum Requirements 4 'AA' batteries (not included)NOTE: Product pictured on this page are represented by the packaging foreasier viewing. The iPod is not included.