How do you turn eyes on the ion paintball gun?

You turn the eyes on by powering up the marker. Every time you turn on the ion the eyes will be "on". To turn off the eyes simply press the power button one time quickly. The red led will now be blinking more rapidly than before indicating eyes are off. Simply press the button one more time to re-activate the eyes or press and hold the power button to turn the marker off.Hope this helps!