The 25-key model features excellent portability allowing you to enjoy playing and producing with a great-feeling keyboard even when you re away from home. Slim lightweight USB bus powered and compatible with all computer-based music software the microKEY is a great way to create your production setup. The microKEY features the velocity-sensitive Natural Touch mini-keyboard that was acclaimed on instruments such as the microKORG XL and the microARRANGER. The proportions of the black and white keys has been adjusted for optimal playability easy chording and rapid phrase work; careful attention has been paid to the touch and playing feel. The waterfall-type keyboard makes it easy to play glissandos. This keyboard will accurately convey the dynamics of your performance to your software. Octave Shift buttons are provided on all models. Using the UP/DOWN buttons allow you to shift the octave the appropriate number of steps for each model so that when used in conjunction with the Key Transpose function the full range of notes in the MIDI specification can be covered. As for the array of controllers needed for boosting the expressive power of your performance the 37- and 61-key models feature a pitch bend wheel and modulation wheel. The 25-key model features an arpeggiator button a sustain/tap button and a joystick to which you can assign pitch bend modulation or any other control change giving you plenty of control and rich expressive potential in spite of its compact size. No driver installation needed The standard USB MIDI driver provided by Windows/Mac OS X is supported so there s no need to install a driver. Simply use a USB cable to connect the microKEY to your computer and it s ready for use. You can connect the microKEY to your iPad and use it to control apps (※2) such as the Korg iMS-20 via MIDI (※2). If you re using the 25-key model Apple s iPad Camera Connection Kit and a USB cable is all you need (※3). For the 37/61-key models you just need to connect them via a USB hub that can supply power.