Franzis Bat Detector Kit

Can't hear the cries of bats??
With the right equipment you can and so much more!

Make your premium ultrasound detector and experience it yourself!

This easy-build kit contains a circuit board with many components already mounted.
Just assemble the other parts yourself, wiring the ciruit board, microphone, loudspeaker and controls. Thanks to the latest electronics, the finished detector will be very sensitieve and powerful.

Once built, start exploring and discover-ing. With this detector, bats' ultrasonic cries will finally be audible!
Track these aerobatic marvels as they hunt for insects in complete darkness.
But it's not only bats that emit ultrasound - many pieces of technology do too. You'll be surprised at the number of usually inaudible sounds that surround us every day.

Build this kit and give your ears super powers!

Additionally required: 1x 9V battery