Live Audio is a thinkorswim gadget that allows you to stay tuned to your favorite Internet radio channels. Like all other gadgets, Live Audio can be displayed as a section of the left sidebar or a separate window (see the Left Sidebar article for details).
You can select any a pre-defined channel on the list or specify a custom one (this can be done by choosing Custom... from the drop-down). Click Update to view an updated list ofavailable channels. Once you've selected the channel, click Play to tune in to it.