This Hisense AI20TUGS is a 2.0 horsepower, 5-star rated air conditioner featuring inverter technology and utilizing R32 refrigerant. The inverter technology allows for energy-efficient cooling by adjusting the compressor speed based on the cooling demand. The 5-star rating indicates high energy efficiency, potentially leading to lower electricity bills. Using R32 refrigerant contributes to a lower environmental impact compared to older refrigerants. It's designed to provide effective and efficient cooling for medium-sized rooms, with free shipping included.