Large display shows channel number, channel name, artist name, song title, and channel category * Personalize settings with XM Radio"s InfoExtras and TuneSelect * Built-in wireless FM transmitter turns any FM receiver into an XM radio * Delivers more than 150 high-quality, XM satellite radio stations * Measures 3.9 x 2.4 x 0.7 inches (W x H x D)