Which iRig product range? Mic? MIDI keyboard? Pedalboard?
I'll guess that some sort of adaptor will be needed.
As this is primarily a user to user forum, someone-else may chime in. Meanwhile, the best thing to do, for a definitive reply, is raise a Support Ticket, here:
http://www.ikmultimedia.com/contact-support/mi/for some one to one help (US (East Coast) Business hours, generally).