This is not a metal detector. This will not detect a magnet from a foot away. You shouldn't use
this alone to do a smash-and-stab. What you have in Minimax is a tiny vibrating detector which will
brilliantly do kurutsuke with a magnetized ball or PK ring in hand or under one of several playing
cards. What else do you want for $100? It's incredibly small--I can conceal it under a
bracelet--it does the job, and for what it does, it works well for me. If you want to spend three
times more money, then get Sixth Sense: It's more sensitive but huge compared to Minimax. It's
your call. But for heaven's sake, stop bad mouthing a product simply because you don't understand
the scientific principles involved or its limitations.