This powerful 9,000 btu mini split heat pump with R454B refrigerant and inverter technology provides energy-efficient all-season comfort, automatically adjusting power to save energy and extend lifespan while maintaining stable temperatures. it offers five modes (auto, cool, dry, heat, fan) and smart home integration via wifi/alexa, featuring auto-defrost, self-diagnosis/cleaning, ifeel mode, 24-hour timer, sleep mode, and energy-saving mode. ultra-quiet operation below 42db suits bedrooms or offices, controlled via remote/app for precise temperature adjustment (61°f–88°f) with smart timer (0.5–24 hours) and automatic remote display shutoff. engineered for harsh conditions (5°f to 118°f), it delivers 50-foot airflow with 4d circulation to eliminate hot/cold spots. includes outdoor unit, indoor unit, 13 ft copper pipes (air/liquid), 6.5 ft drain hose, 13 ft communication wires, remote, and user guide (excluding shutoff valves and side grille); professional installation required.