Yes, it definitely has line-in, otherwise I wouldn't consider it. The former Q2 didn't have inputs.
Great to know yes audio input are a must for recording demos or what have you...Q2n has very good reviews and its cheap..just put it on a stand...plug in two stereo line audio inputs and record..
Now what about the Q2n fisheye effect?.. which I really dont like ....https://recording.org/threads/zoom-q2n-its-cheap-but-is-it-worth-it.59831/
I always see that on the go pro, etc.. I see that you cen edit it on a pc with "Curvature" edit?
https://www.youtube.com/watch?v=8H6iWOkTR_0