Features 1、Fun in Learning: Ultrasonic suspension standing wave controller DIY Electronics making kit is suitable for DIY electronics and can also be used as a school education practice kit, the welding practice kit is both fun and can practice hands on ability, very interesting for those who want to learn more about physics , very useful. 2、Good Suspension: The suspended foam ball is stable. With the ultrasonic probe, it can still be suspended when lying down, and can be suspended for a long time, which is stable for 24 hours. 3、Simpler Working: No complex programming required, just basic soldering, check all accessories before assembling the kit, and marking the location of the components on the board for easy assembly. 4、Smart in Design: The device consists of a PCB circuit board and components, and also includes a set of foam balls. Not only will this improve your soldering skills, you will also become more familiar with electronic components and understand ultrasonic levitation and standing waves. 5、Ideal for Class: Mainly used for students or DIY enthusiasts to learn about ultrasonic standing wave suspension. Specification Item Type: Ultrasonic Suspension Module Material: PCB Package List 1 x Ultrasonic Suspension Module