You can use the audio component to send audio files to user. Here's the limitations that you should be aware of:

• Max number of audio component that you can add to a bot: no limit
  

• Max number of audio component that you can add to a block: no limit
  

• Max support size for audio file: 30 Mb

• List of supported audio formats:
  
  • MP3
  • ...

• Do you support direct embedding from hosting platforms like Soundcloud? Not at the moment, but please write to support@botsupply.ai if you need it and we'll be happy to work on it