ON/OFF: Turns the air conditioner on or off.MODE: Cycles through Auto, Cool, Dry, Heat, and Fan operational modes.TEMP ▲ / ▼: Raises or lowers the set temperature (typically 17°C to 30°C).FAN SPEED: Adjusts airflow intensity through Auto, Low, Medium, and High steps.SWING: Controls the vertical louver movement for directing airflow up and down.