Friedrich Chill(R) Premier Inverter Smart Room Air Conditioner is ultra-quiet, adaptive and efficient comfort. With its state-of-the-art Precision Inverter(R) Technology provides efficient, precise temperature control and Library-Quiet(TM) sound levels, while convenience comes standard with simplified installation, and an adaptable design that allows the window to be opened, even after the unit is installed, or for more permanent through-the-wall installation. Equipped with built-in Wi-Fi for convenient control via the FriedrichGo(TM) App, it ensures ultimate flexibility and ease of use. Turbo Cool delivers a remarkable 41% boost in cooling efficiency, while Library Quiet(TM) Operation ensures serene tranquility with noise levels as low as 42 dB. Soft-Start(TM) technology eliminates abrupt starts and stops, creating a peaceful oasis of comfort. With up to 35% greater efficiency than traditional units and ENERGY STAR(R) certification, our air conditioners lead the way in energy savings and environmental responsibility. Every Chill Premier Inverter model is a clever choice that delivers complete comfort and control.