Spy Labs Incorporated's activity kits and equipment provide an engaging and interactive way for kids to learn about detective work, including forensic analysis and tracking techniques. Includes two components: a transmitter that emits silent, ultrasonic sound waves which you can detect and track using the handheld detector; the light-up display on the detector lets you know when you're getting closer! Hide the transmitter with valuable objects or on a suspect to track their whereabouts as you hone your skills on your way to becoming a super sleuth! Promotes pretend play as kids ages 8 and up take on the role of detective, setting out to unravel mysteries one tough case at a time. Become a first-class secret agent with Spy Labs, the Detective Gear Experts; your trusted source for all your essential spy tools and gear!