LRG SHELF SYS DUAL IPOD USB'Dual Design' allows the user to charge 2 iPod®s simultaneously or separatelyMotion sensor featurewave hand in front of sensor to power on automatically 230-watt total power output with 3-way linear phased speakersUSB host and AUX input for iPod®, flash drive and MP3 playbackVideo output for iPod® with video playback2 microphone inputs with digital echoVario Bass with turbo, movie, lite n' easy and auto options2 sound modes Live Surround (dance/hall/stadium) or Sound Mode (rock/pop/classic)3-mode manual equalizer and level controlled subwooferAM/FM radio with up to 45 programmable presets (15AM/30FM)Tray-loading CD player with CD, CD-R/RW, MP3, WMA playback 32-programmable CD options with repeat play and smart random playCompatible with all dockable 30-pin iPod®s4G or later8 1/8" W x 16 3/16" H x 11 1/2" D, weighs 7.9 lbs.Includes remote