INDOOR unit only!!! The Acekool CMS9 Pro Indoor Unit 9000 BTU Mini Split WiFi Smart AC Air Conditioner is a high-quality through-the-wall/window air conditioner designed for indoor use. With a sleek white plastic design and a cooling capacity of 9000 BTU/h, this energy-efficient unit is perfect for home or office settings. Equipped with WiFi control, adjustable height, and eco-friendly features, the Acekool CMS9 Pro offers convenient and customizable cooling solutions. Additionally, the unit is lightweight at 77 lbs and easy to install on the wall, making it a practical and efficient choice for heating and cooling needs.