Real 4 Star Product R32 Refrigerant – Global Warming Potential (GWP) is one-third of R410a R32 is more efficient and cost less to operate Self-Cleaning Evaporator Labyrinth design PCB – Prevents from dust, moisture, short circuit and rain Environmental Protection Coating – EPC Gold Fin Evaporator & Condenser 4D Airflow with Strong double intake air door WIFI ready – USB connectivity with convenience Quick cooling and Heating – 65 Hz startup Precise Ai Temperature Control up to 0.1º with improved sensing accuracy Low Voltage Operation 150-270v Multi – Health Filters Self-diagnosis for low refrigerant Superior Remote Control design (Large LCD, IPX5 Waterproof) 0.3 W Standby