This mini split air conditioner features a high-power compressor and heat pump with inverter technology, saving 35% energy while covering up to 450 sq. ft. It offers 6 modes: Cool, Fan, Dry, Heat, Eco, and Auto. The backlit Lcd remote includes iFEEL mode, 24-hour timer, sleep mode, and Health mode (negative ions, PM2.5 removal). Operating at just 23 dB, it starts at -4degree(s)F and runs up to 140degree(s)F, with 50-foot airflow for 4D circulation. The complete installation package includes indoor/outdoor units, copper tubes, and mounting bracket. Professional Hvac installation is required. Keep unit upright for 24 hours before setup. Etl and Ahri certified for reliability.