I'll have a collaboration with a friend in school. And since we'll do the collaboration in school on break time, I can't bring my headphone 'cos it's big and if a teacher found out I bring it, it might get confiscated. So we decided to use in-ear earphones/canalphones which is much more low-profile than headphones. My question is, is it okay to produce with it instead of headphones? It can isolate the crowded sound of the classroom a bit better than my headphone. --- P.s. The headphone I use for usual producing is Panasonic RP-DJ120. Not a studio headphone but a DJ headphone. And my earphone is MDisk MD-E945.