The Interlink VP6350 PadDock 10 iPad Speakers/Charger is a powerful stereo system that has been electrically and acoustically tuned to produce lifelike vocal presence and instrument tonality. Its design uses custom-designed oval (40 mm x 55 mm) speakers with high-energy neodymium magnets for room filling sound. A unique passive radiator extends the bass frequency for a natural full range sound quality.