With the Jr. Scientist Ant Footsteps Stethoscope, you can hear sounds normally beyond the ability of humans to hear, while viewing your subject through the clear, plastic bubble. You’ll hear sounds from the microscopic world – such as an ant’s footsteps. This science kit includes a colourful instructional book to show you have to conduct numerous sound experiments. You’ll be able to use the stethoscope to hear secret sounds of places you can’t see into, like the inside of a water pipe. Requires two, AA batteries (not included). Ages 8+.