How much technology can you cram into a container the size of a deck of cards? In the case of the SoniqCast Aireo 2, a lot. At its heart, it's a 20GB digital audio player with an FM tuner. But it also has an FM transmitter for wirelessly connecting to your car radio or home stereo, and Wi-Fi for a no-cables connection to your PC. Moreover, the player also use your network or any open Wi-Fi access point to connect directly to Audible.com for books, newspapers, and talk shows, or to SoniqCast.com for music. And SoniqCast constantly varies the mix on your player, using rules to select the amount of material from a playlist, the percentage of the player space to use, the player space to replace, and the actual media to use.