1 x louder speaker for sound effect board of grade crossing signal higher volume

price for 1 speakerwith connector to fit my Sound Effect Board.the bell sound will be louder than the default speaker ( 0.5 waltz ).Specifications:Brand: WeHonest Model.Wire Length: 300mmpower: 2 waltzPackage included:1 x speaker with wired connectorfit the following sound effect board:...