Check the listing for details. IK Multimedia iRig Keys I/O 25. Color: Black, Condition: New. Listed at 229.99 USD. Portability is key, that's what mobile musicians demand, and that's exactly what iRig Keys I/O Series keyboards deliver. The iRig Keys I/O series evolves the concept of traditional controllers as the only one available on the market that integrates 25 or 49 full-sized keys together with a fully-fledged professional audio interface featuring 24-bit audio up to 96kHz sampling rate, balanced stereo and headphone outputs, plus a combo input jack for line, instrument or mic input. Together with an audio interface, iRig Keys I/O also packs all the controls you would expect from a premium controller, including velocity sensitive multicolored pads and programmable touch-sensitive sliders, buttons and knobs for unique expressiveness and fast workflow.