MRCOOL Olympus Multi Zone Cassettes are a type of ductless mini-split system that can provide heating and cooling for multiple rooms in a home or office. They consist of an outdoor unit that connects to one or more indoor units, which are mounted in the ceiling. The indoor units can be controlled individually by remote controllers, allowing for different temperature settings in each zone. MRCOOL Olympus Multi Zone Cassettes are energy-efficient, quiet, and easy to install. They are ideal for spaces that need customized comfort and flexibility.