Use the 9 keypads to access your music. Fast. Dial the name, hit Play, and boogie. Drill down into even the largest music collection and find your selection with just a few taps. All your music's metadata is indexed for instant access. Threedef is a better way to use a big music library. The age of scrolling through endless lists of artist, album, and track names to find and play our favorites is over. Good riddance. Now, it's instant.