You borrow any smartphone. The spectator plays a song as loud as possible. Without pressing any buttons, you cause the phone to silence.
People do not leave their house without their phones. The impact of performing amazing magic with such a personal artifact is unrivaled.
With Jeff Prace’s ingenious Silencer gimmick, you have the ability to mute any device that plays music. There are no unnatural movements, and Jeff even shows you how to silence a phone while in the spectator’s hand or on a table. Everything is immediately examinable.