IK Multimedia iRig Keys 2 Pro MIDI Controller

Device Connector: micro-USB
MIDI Input: 2.5mm TRS Jack
MIDI Output: 2.5mm TRS Jack
Headphone Stereo Output: 1/8 TRS Jack
External Pedal Input: 1/4″ TRS Jack
Controls
Volume knob
Octave up/down buttons
Program up/down buttons
Setup button
1 assignable data push encoder
4+4 assignable knobs
Conversion: 16 or 24-bit D/A
Sampling Rate: 44.1 kHz, 48 kHz, 88.2 kHz and 96 kHz
Power: USB bus powered when used with computer or mobile device, USB power supply or USB battery packs
Lightning to micro-USB connection cable (60cm/23.6″)
USB-A to micro-USB connection cable (60cm/23.6″)
2.5mm TRS male to MIDI female adapter (10cm / 3.9″)
Dimensions; Size: 605mm/23.8″ x 212mm/8.4″ x 64mm/2.5″
Weight: 1.87kg/66oz”