 The standard audio system comprises a ten-speaker, 250 W set-up that includes a radio, CD player, WMA and MP3 compatibility as well as USB storage devices.From 2008 to 2012, there was an optional Bowers & Wilkins (B&W) sound system available.At its core there are 14 speakers which (with the exception of the aluminium high-frequency tweeters) employ B&W's Kevlar composite speaker cones.