Probe by Sean Taylor

After more than 5 years of underground sales to a select group of Mentalists and Magicians, Rhinesense Mk 4, PROBE is finally available to YOU. Mentalism doesn't get much more direct than this. The spectator is handed a packet of ESP cards. They take any one and place it between their hands whilst your back is turned; the remaining cards are placed out of sight into their pocket.

When you turn around you, know INSTANTLY, ELECTRONICALLY and EVERY TIME, which one they have.

NO forcing, NO fishing, NO set up, NO practice, NO hassle.
You touch NOTHING before, during or after.
Strap on like a watch and you are ready...in seconds.
Instantly repeatable...no reset.