Bluetooth Audio Board Case

I recently bought a Bluetooth audio board and wanted to use it. After a while I decided it would be the best to make a case for it so it will be protected while playing around with it.
I even aded some vent slits to the top and bottom case to prevent overheating, at least I thought it would become hot inside this case but it never happened so far. At least the slits are there should that ever happen. It even has a little cut out in the lid to allow the capacitor on this board to not get damaged