❄️12000 BTU-Inverter-WIFI❄️. ✔ Energy Saving: With the advanced Inverter technology, this window ac unit gives you 35% more energy-savings compared to other traditional units. 1 x Air Conditioner. ✔ Fast Cooling: Featured with powerful compressor and copper motor, efficiently cools down your room or office with this 12000BTU window air conditioner, covering a generous area of up to 520 square feet.