1. This is a small ultrasonic levitation device that can levitate foam balls. 2. Operating at a frequency of 40 kHz in air, this levitator can capture lightweight objects with a diameter of 2–3 mm, such as foam balls, and maintain stable suspension for extended periods. The mainboard generates slight heat. 3. The circuit primarily consists of a microcontroller, a driver chip, and two ultrasonic transducers. 4. Operation is simple: Use tweezers to pick up a small foam ball and gently place it between the two ultrasonic transducers to achieve levitation. 5. This device is intended for educational purposes to demonstrate ultrasonic standing wave levitation and is suitable for students and electronics hobbyists. Power Input: DC 5 V (0.5–1 A) Frequency: 40 kHz Operating Temperature: –25 °C to 85 °C Plug Type: EU Plug Voltage: AC 100–240 V Color: Black Material: Plastic Package Contents: 1 × DIY Ultrasonic Levitation Kit 1 × Power Adapter