Scream Fountain: As a new type of water feature entertainment, it operates by converting the pitch and duration of human voice into analog voltage to control the frequency of a variable frequency inverter. Adjusting the frequency changes the motor speed, which in turn alters the pump pressure. This allows for controlling the pump speed to regulate the water flow rate and the height of the jet, determining the fountain's height and duration. It's an engaging and aesthetically pleasing water feature project.