Ultra-compact XM satellite radio receiver specifically designed for vehicle use * Accesses more than 150 commercial-free channels of music, sports, talk, news, and entertainment * Plug-and-play design transmits signal through wireless FM transmitter and car cradle * Displays channel name, artist name, and song title on high-contrast display; customizable sports and stock tickers * Measures 3.7 by 2.2 by 0.61 inches (WxHxD); 1-year warranty