The Keystation 49-e is one of a long line of highly versatile and compact USB MIDI keyboards from M-Audio. With 49 pressure sensitive keys, pitch bend, modulation, and other more advanced functions this keyboard can be used by both the expert and the novice.  Whether purchased as an individual unit or in a bundle with the highly acclaimed Piano Wizard piano instruction system, the Keystation 49e is a solid and useful accessory.