Okay I have astro gaming a40 head set.. It had Mic in and audio in but my laptop only has one port can I use my headset? Adaptor our anything I can buy thanks it's the 15 inch model maxed out..
I can't post on the authenticity of these claims, as I do not have a rMPB (yet), but I've looked into this same issue. I've heard that you can use the iRig to have audio in. Again, I haven't tested this, but it looks like it would work. You will probably also need a 1/4th to 3.5 adapter.