Abstract: Loudspeakers transition to headphones which transition to in-ears. Your environment changes but your workflow and sound does not. It’s a constant evolution where you work and what project. An engineer knows their room but has to mix in someone else’s or a hotel room. What do you do to ensure a reference that connects the environments? In addition to the various types of studio(from near field to mains) there are great headphone and in-ear monitoring solutions. Find out how to use and maximize all of these technologies and what is best for you.