The original amazing lotus flower musical birthday candle will definitely "wow" the crowd.
There is a failure rate of approximately 0.33% or 1 in every 300 candles. In this case, the candle will not open and/or light; unfortunately, there is no way to identify a defective candle before lighting.
The music is not loud enough to be audible in a noisy environment.
More frequently, the copper wire that plays the tiny speaker is loose or broken and the candle may not spin or play "Happy Birthday".
Be sure to light the center of the candle from the side (as noted in the instructions), not from above. In addition to being unsafe, lighting from above may damage the copper wire and the candle will not spin and/or play "Happy Birthday".
Please let us know if the candle does not perform to your expectations.