Starting with the base, the back side features inputs for power, a 3.5mm line-in jack (sadly, you can't bleed in your PMP with the TOSlink feed), an opticalinput and a sync button.
Moving to the front, the left earcup has a click button that allows you to switch from the opticalinput or the stereo input on the base, while the right cup controls the four EQ options that are available.
The new Z-Base sound bars offer two analog audio inputs, one optical (toslink) digital input, one coaxial digital input - plus a front panel 3.5mm analog stereo input for convenient connection of an iPod or other portable audio device.