Speakal iHog 2.1 Stereo Docking Station and Speaker System with Rechargeable Battery for iPhone and iPod (White) Charges and plays all iPod with Dock Connector, and all iPhones, also plays music from any device with a 3.5mm output connection Rechargeable Li-ION Battery for up to 6 hours of playing music anywhere Touch-sensitive controls for adjusting volume and controlling your the docked iDevice Multi Function Compact IR Remote Control for the iHog and the docked iDevice 4 speakers & 20W Dedicated Down Firing Sub, Bass Reflex, Sound Stabilization technology for best sound quality