If you need a great iPhone trick, this one is for you. Imagine, a spectator chooses one card from a deck. The magician takes out his iphone and opens the caculato app. Spectator inspects the caculator, and they type 5 or 6 random digits on the screen and with a little shake, the number they typed change into THE NAME OF THEIR CARD
+ Only Use for IPHONE
+ No required any special application
+ Fast and stunning change
+ Freely type numbers