Model Number: SPK ST-3 Key Specifications/Special Features: Quality speaker for iPod (also charge iPod while playing )With standard 3.5mm line-in jack (can work with most of theMP3/MP4, mobile phone in the market)2W + 2W speakerWith AC charger, optional powered by 4pcs AA size batterypackSpecial aluminum tube body, available for 4 differentcolorsDISCLAIMER: All trademarks are used for reference purposesonly. We are not authorized to sell any items bearing suchtrademarks.