Launch the
Subsurface Experience
Step 1
Turn on the flashlight of your smartphone.
Step 2
Activate the audio by tapping this button.
Step 3
Position flashlight bulb directly above the flashlight icon on your Subsurface football and hold in place.
Step 4
Look closely through the "porthole" in the center of the sonar logo on your football.
Explore by moving the flashlight to adjust the light.