4 or 5 ema crossing the 20sma in the bollinger bands

 

hi everyone

how is everyone, well i am fine. hi scorpion i am testing a new trading strategy that if it can give the results it will be a bomb. all i need is a sound alert that rings everytime the 4 or 5 ema crosses the 20sma in the bollinger bands drawn in the same timeframe.

hope you can help