DESC: The CQ-C8305U also features an impressive ability for expansion. With optional adapters you can input a wide array of devices; iPod, Satellite radio, CD changer, and Bluetooth. And, with Panasonic's CY-EM100U you can input up to four of these devices at once. The CQ-C8305U will not only accept these add-ons, but it will allow you to control them from the stereo as well. So, you can select tracks and files from your iPod, switch satellite radio stations or shuffle your CD changer's discs. Plus, with the Panasonic CY-BT100U Bluetooth adapter you can receive incoming calls and talk on a Bluetooth compatible hands-free phone.