Remote Signal Interference (in Case)

This may be a silly question but having no knowledge about electronics I find myself at a huge disadvantage.

I have been looking around at protective covers for the remote, I have noticed one a fellow sells that for all
intensive purposes would be my best guess a waterproof plastic case for a cell phone, has a rubber gasket
and comes with a clip to attach to the stem. Seems like a good option if you were hunting in a place where there
would be a risk of damage or dunking, have to be a set and forget for the most part because once in the case
the buttons would not be accessible without opening. Now after all that my question is being in a hard case would
it interfere with the signal from the coil ?

While on the cover topic I have been told the silicon cover from Deus its almost impossible to see the screen through
the silicon . Any opinions ?

Thanks
DFB