On top is an LED candle, make a wish, "blow out" the candle and the light goes out and you will hear clapping. Interactive birthday cake with sound and light Cake has six pieces and comes with cardboard hat, cake scoop, three chocolate wafers and three strawberry slices. Press the chocolate disc to hear the happy birthday song and see the electronic candle light up. Blow into the holes around the candle to see the light turn on and hear the cheers, claps and happy birthday wishes. If not used for 30 seconds, the cake topper will automatically go into sleep mode. Press the chocolate disc to reactivate it. Perfect for encouraging role playing and creative thinking.