Set up an invisible perimeter around your top-secret stuff and no one can cross it without you knowing. The Spy X Lazer Trap Wire is like your own private version of Mission: Impossible. This unique security system includes one emitter and two receivers that can be strategically placed to guard your valuables — similar to what banks and museums use. When a snoopy sibling or other intruder crosses the invisible line and breaks the laser beam, an alarm will go off to alert you. Gotcha!