Grounding boxes?

[The Black Adder]

Hi.

Could anyone give me any idea if these voodoo-like boxes actually work?

I ask because a friend of mine in Belgium has just bought some Entreq boxes and he says they really do make a positive difference. He's certainly not one to make stuff up, so... do they work?

The more I look on the net about the 'grounding box' the more I'm intrigued.

I do love my crystals and I do believe they can be used to comfort people. I have known this to be true.

Entreq grounding boxes seem to be the the most famous manufacturer but other manufactures are now stepping in with positive results from users.