This was a Cool Box purchase. As such, I have capped the "poison pen". It does do what it says it will, but has very limited functionally relating to the devices it will work with. For example, my phone is not one of those it works with- nor are either of my two cameras.~Smeg. Should say that in the ad. Tisk tisk. It can also be tricky to implement the method on the fly,as folks are protective of their phone. and I don't see it working on a borrowed unit with a tough audience.

With that said, I borrowed a friends phone and it is a Great Bar trick, and should work nicely around Valentines day. For a casual gathering, "this is SO cute!" type of thing, its $$$ well spent. Had I paid full price I would have been ticked.

I like this effect a lot. It's cool and I've gotten great reactions from spectators. My only problem is that I've had a little trouble in the daytime. It still works, but it doesn't look as good

This is one of the coolest effects out right now. You'll love it! Just make sure your phone has a case and you are set!

This effect is SUPER cool! And it ALL happens in the spectators hands and there's nothing to find! SO SO SO COOL! ...and so worth the price!!

Excellent effect! I love that you can easily carry this with you in a way that makes it seem totally impromptu. The effect is really amazing. It really opens the doors to talking about how fire has a different energy that sometimes can be manipulated with the mind. The only drawback is it currently is just for one card, so you can't do it again with a different card. If you do this effect casually, you really must be ready with something else that is also very cool to divert the attention away from "do it again with a different card, please, please..." Perhaps another cool effect would be photosynthesis by Andrew Mayne. Or, a really really good card trick like Hopper by Justin Miller. I highly recommend all three of these.