The Toy TimeElectronic Listening Device with parabolic dish and background noise reduction is the perfect accessory for educational, investigative and fun sleuthing! This device promotes STEM learning by allowing kids to conduct experiments to learn and discover more about sound ...The Toy TimeElectronic Listening Device with parabolic dish and background noise reduction is the perfect accessory for educational, investigative and fun sleuthing! This device promotes STEM learning by allowing kids to conduct experiments to learn and discover more about sound and frequency. It also inspires kid's imaginations to play pretend that they are a spy on a secret mission, or a detective solving a mystery! With the built-in volume control, your little sleuth or little scientist will be able to safely hear sounds up to 200 feet away through the included headphones.