This is a firesiren designed for a smart home System. It fits to a 40mm speaker and to an MP3 module from Amazon.
MP3 modul example:
https://www.amazon.de/TF-Karte-Festplatte-MP3-Decoder-MP3-Modul-MP3-Player/dp/B00WNTJX4K/ref=sr_1_5?ie=UTF8&qid=1547374015&sr=8-5&keywords=mp3+modul
| Hut.stl | 30.6KB | |
| Inlay.stl | 22.2KB | |
| Körper.stl | 26.1KB |
