This electronic listening device offers the child an opportunity to hear voices, noises and sound from a distance. For example, you can listen to friends talking or to birds chirping on a tree. Point the Supersonic Ear in the direction of the sound, pull the trigger and you begin to hear what no one else can hear. Head phones are included with the product. Requires one 9-volt battery. This product is part of an extensive collection of innovative products that encourage children to explore nature adventures out of doors.