The “Which Hand” magic app
Echolocation
Perform amazing “Which Hand” and “Free Will” routines using your iPhone and AirPods.
This app harnesses the high-end technology inside of the AirPod to secretly cue the magician when it is in motion. Keep your iPhone in your pocket to feel a vibration, or peek the information in plain sight.
And at the end of the routine, you can open your Notes app to prove you had perfectly predicted the outcome... every time.