Notification sound to my promodo clock

JavaScript
#1

hi friends , i need some help how to add a notification sound to my promodoro clock

#2

Explain in detail what you have tried so far. I assume you want to add a sound that plays at the end of each sessions (Work/Break)?

Have you researched about how you would accomplish this before asking on the forum? If so, is there something you have read you do not understand?

#3