Midea Air condition All Easy Pro 9000 BTU Inverter R32 A+++ on cooling mode, and A+++ on heating mode. When you are away for 30 minutes, its intelligent eye automatically lowers the frequency to save energy. The unit will automatically start and resume operation if sensing human activity again. Also works with WiFi control. Furthermore, its Super Ionizer function generates negative ions, eliminates dust and smoke, and offers you fresh and healthy environment. 5 years warranty.