Special 3D inverter technology enables significant energy savings, quiet operation and long-lasting quality. The indoor unit has a BIO filter and a dust filter which makes the air you breathe very clean while the outdoor has a completely new construction that is now even quieter and more resistant to external influences. All this in energy class A ++ in cooling and A + in heating. In addition to all the above, in addition to purchasing a WiFi module, this device is also WiFi manageable. High efficiency, self-diagnosis, 1W standby, valve protection outdoor unit, 12 Fan Speed, self cleaning, cooling gas leak indicator, noiseless operation, two-way condensate drain, digital display, sleep mode, timer, intelligent ignition, memory function , turbo, Wi-Fi ready.