Comformatic 18,000 Btu Inverter 15 Seer Ductless Mini Split Air Conditioner Heat Pump Includes Easy Installation Kit, with 16 Foot Length Line Set and Various Other Accessories High efficiency Inverter technology Sleep function allows you to design a cycle that follows your sleeping pattern to maximize comfort and reduce utility bills. Intelligent defrost reduces energy loss and defrost time by only defrosting when needed. Additional Features Includes easy installation kit, with 16 foot length line set and various other accessories Auto clean