Features:

• Portable 25-key controller for USB-equipped computers, iPhone, and iPad
• 25 full-size keys for a great playing experience
• Inputs for Sustain and Expression pedals (sold separately) expand your control over your sound
• Shift button lets you access extra functions like Transpose, MIDI Channel, Program Change, Velocity Curve, and more
• Volume and Pan knobs can be assigned to any Continuous Controller you like
• Powered by USB bus power or your iOS device
• Confirmed compatibility with iPhone 4, iPhone 3GS, iPod touch (4th and 3rd generation), iPad 2, and iPad