This acrylic cake topper features LED lights that add a lovely glow. When activated, it plays the classic 'Happy Birthday' song. Batteries are included. It measures approximately 3' x 5'. Manufacturer numbers are: Happy Birthday - 40030456H, Let's Party - 40030456L, Yay - 40030456Y.

Using this cake topper is super easy. Just place it on top of your cake. To start the music, activate the switch on the topper. Since it comes with batteries, you're ready to go right away. When you're done with the party, gently remove the topper from the cake. Keep it in a safe place, away from sharp objects to avoid scratching the acrylic. If the batteries run out, simply replace them with new ones of the same type. That's all there is to it!