1.MINI 5 PIN USB output, replace the professional MIDI cable, saving costs, while maintaining the sound quality 2.USB connect the computer signal data 3. Connect the computer to play a more stable arrangement, connected to the computer, open the distribution of our professional 3D Piano Teaching software, you can play your piano talents 4. Support Win XP / Vista / Win7 / Win8 and Mac OSX systems, to avoid flooding, hot-swappable; 5. Connect ipad, easy to carry, connect ipad, open our distribution expertise 3D piano teaching software, you can play anywhere on your piano talents Oh!