The Delphi Roady XT comes with all the accessories you need to play XM Satellite Radio on your car stereo, including a mount, power adapter, and an antenna. A built-in transmitter sends the XM signal onto your car's FM radio, on any unused FM frequency. Program up to 30 channels as presets so you can jump to your favorites quickly. You can also customize a stock ticker to display the symbols you want to follow, or choose the sports teams whose scores you'd like to see scroll on the bottom of the display. Optional Home Kit accessory available as a separate purchase to use it on your home receiver. Subscription to XM Satellite service required (not included). Selectable scrolling sports scores Stock ticker (up to 20 selectable stock quotes) Up to 30 presets Car mount Roof-mount car antenna Vehicle power adapter Seven selectable display colors Dimensions (WxHxD) - 3-3/4 x 2-1/4 x 3/4 inches Warranty - 1 year