Vail USB CW Key Adapter - Ham Radio

This is a simple case with pressure fit lid for the Vail USB Adapter components. 

I used this buzzer speaker, it fits inside the lid. 
https://www.amazon.com/dp/B01NCOXB2Q
 

For more info on how to build the adapter, check this out.

https://www.github.com/nealey/vail-adapter