const int pushButton = 2;
const int speaker = 3;

int buttonState = 0;

void setup(){
  pinMode(speaker, OUTPUT);
  pinMode(pushButton, INPUT);
}
void loop(){
  buttonState = digitalRead(pushButton);
  
  if(buttonState == HIGH){
    digitalWrite(speaker, HIGH);
  }else{
    digitalWrite(speaker, LOW);
  }
}