You will get

Description

Effect:

A refined wooden box is opened to reveal five resin balls in sequential arrangement - four white and one black. The magician then turns his back or even blinds his eyes. Each of five audience members takes a ball, and the magician already knows who has taken the black ball.

Features:

• Long-press on/off setting.
• Suitable for stage and hall sizes.
• Dual display with vibration and light.
• Physical induction trigger, with one hundred percent accuracy.
• Long communication distance and standby time.

Demo

Picture