IK Multimedia iRig Midi, Midi interface for iPhone, iPod touch & iPad, Standard Core MIDI interface connects any MIDI hardware device to Core MIDI-compatible iOS apps, Directly connect MIDI keyboards, synthesizers, drum machines, drum pads, pedal boards and more using the included 2 x 1,6 m MIDI 5-pin DIN cables, 3 MIDI ports: IN/OUT/THRU, 2 LEDs for MIDI IN/OUT activity display, Micro USB port can charge the iOS device while in use, iRig MIDI is compatible with iPhone 4, iPhone 3GS, iPod touch (4th and 3rd generation), iPad and iPad 2. They all require iPhone OS 4.3 or later
