Description The ultrasonic suspension device circuit is mainly composed of 1 single chip microcomputer 1 driver chip and 2 ultrasonic probes It is mainly used to learn the working principle of ultrasonic standing wave suspension The two ultrasonic probes emit ultrasonic waves with the same frequency and opposite propagation directions forming a standing wave and the small ball stays at the node of the standing wave How to play Use tweezers to clamp the foam ball and gently place the foam ball between the two probes The foam ball can be suspended Specification Brand NIKOLATOYModel Ultrasonic Suspension Device Desktop OrnamentsColor As ShownUltrasonic Frequency 40KhzProduct Size 5 5 8cmProduct Weight About 32gPackage included 1x Ultrasonic Suspension Device Desktop Ornaments