Refurbished Sonic Impact 5085 I-Fusion Portable Speakers for iPod Remanufactured to like-new condition; 90-day manufacturer's warranty Rechargeable, portable speaker case system with docking station Speakers feature advanced Maxxbass technology for an enhanced bass Compatibility with all iPods and iPod minis, iPod Nano and iPod Video with docking capabilities and all non-docking iPods Powered by a rechargeable lithium ion battery; AC adapter included