Insight ProInsight PRO includes a deck of 52 electronic playing cards. Invisible RFID chips embedded in each card transmit the suit and value to the Insight reader, a miniature device that will respond with a coded vibration or send the information to a nearby iPhone. Now with the ability to detect a stack of up to three cards simultaneously, Insight is better than ever before. The Basic Effect The performer hands the deck to a volunteer and invites them to