If power and portability are what you want in a loudspeaker dock, the JBL On Stage®* IV has them – in style. Four JBL® Odyssey® full-range transducers and a digital amplifier will fill virtually any room (or outdoor space, for that matter) with realistic JBL sound, and six AA batteries will give you hours of continuous use. The IR remote control lets you navigate your music library from across the room, and a USB cable will sync your iPod or iPhone with iTunes and keep it charged. So anywhere you and your friends get together, you’ll want the JBL On Stage IV to be there, too. Remote Control Buttons Highlights Charges your iPod or iPhone AC or battery operated (batteries not included) High power output IR remote control navigates iPod menus from 15 ft (4.6m) away Up to 16 hours of music playback from a fresh set of batteries Easy-to-use touch controls USB jack syncs iPod/iPhone with iTunes when connected to your computer Compatible with all docking versions of iPod and iPhone from 4th generation and later generations, MP3 and CD players, and desktop and laptop computers (all platforms) LED light illuminates the transparent platform for your iPod or iPhone model and provides feedback on power and battery status of the On Stage IV System design is optimized, so that the speaker is immune from cellular phone interference during music playback Specifications General Brand JBL Model Name JBL ON STAGE IV BLK Weight 1.6 lb (0.7kg) Available Colors Black, White Audio Specifications Dimensions 2-11/16" x 8-1/4" x 8-1/4” (68mm x 210mm x 210mm), Weight: 1.6 lb (0.7kg) Frequency Response 110Hz – 20kHz Input Connections iPod and iPhone dock (main connection); 1/8-inch (3.5mm) stereo mini-jack (auxiliary connection) Transducer Four x 1-inch (25mm) JBL Odyssey transducers Power Battery Size/Type 6 x AA NiMh or alkaline Power requirement 12V DC, 1.5A Rated power 10W x 2