This MEMS mic kit unlocks the full capabilities of iLoud MM Pro, letting them instantly tune to any room. In just a few seconds, iLoud MM Pro ensures ideal acoustic performance in any space, making it the ideal companion for use in home, project, mobile or makeshift spaces where room treatment isn’t an option. Just connect an ARC measurement microphone (included) and you’ll be up and running in moments.The MEMS mic kit is included in the two-speaker bundle of iLoud MM Pro, this replacement bundle is intended for those who need a second microphone, or who purchased individual iLoud MM Pro monitors. It is not compatible with iLoud MTM MKII or iLoud Precision.Microphone only. Monitors not included.