The Astrocomms MP3 Mini is an alternative for the Sparkfun MP3 Trigger.
It’s only usable with a Shadow MD setup (Astrocomms).
It needs 5V input to power it. And the signal pin needs to be connected to the DomeMaster Pin (Dome TX).
The MP3 Files need a 4 digit number and need to be placed within a folder called “MP3”
Available at shop.printed-droid.com