DESC: The Pioneer DEH-P9800BT car stereo is packed with cutting-edge features sure to impress any true audio aficionado. From playing MP3, WMA, and AAC files from your CDs, to having an auxiliary input for your portable MP3 player, the DEH-P9800BT has a method for you to enjoy all your digital music while on the road. As an extra bonus, this stereo comes fitted with a built-in Bluetooth wireless receiver that enables you to make convenient hands-free calls without having to install any extra adapters.