In an attempt to tailor its products to suit the requirements of consumers in India, LG introduced the aero$-$comfort system. A remote control is programed to regulate both the air$-$conditioning and the ceiling fan. Consumers can switch off the AC and increase the ceiling fan's flow once the desired temperature is achieved. This not only increases convenience, but also cuts down electricity charges. LG$\text{'}$s aero$-$comfort system is an example of which of the following?