Whether you're a newbie or a seasoned pro, sounds, size, portability, features, and ease of use are things that you look for in a synth. Lugging around wall-wart power supplies, a string of cables, a heavy synth that feels like a stack of cinder blocks as well as looking for a power outlet are all hassles for the keyboardist who wants to play outdoors, whether in the park, the cafeteria, or in a boat ride at the middle of a lake (though I would not recommend it). The perfect solution for the traveling keyboardist is in the form of Roland Juno-Di.