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Description
DIY Acoustic Levitation Electronics for Standing Waves DemonstrationDIY Acoustic Levitation Electronics for Standing Waves DemonstrationFeatures:. FeatureWorking voltage12V; Size42mm X 26mm X 53mm(H); Suspended object: foam ball; Button K1 K2 not support (Reserved function) .. The new PCB is changed to octagon. LED (red) power indicatorwhile LED (yellow and green) ultrasonic suspension indicator. The output voltage amplitude is 24V, measured with a multimeter, and the AC file is about 33. 9V. The suspended foam ball
DIY Acoustic Levitation Electronics for Standing Waves DemonstrationFeatures:
.Feature：Working voltage：12V; Size：42mm X 26mm X 53mm(H); Suspended object: foam ball; Button K1 K2 not support (Reserved function) .
.The new PCB is changed to octagon.LED (red) power indicator，while LED (yellow and green) ultrasonic suspension indicator.The output voltage amplitude is 24V, measured with a multimeter, and the AC file is about 33.9V
.The suspended foam ball is stable, Ultrasonic probes are matched to ensure that they float successfully every time.It can still levitate after lying down. It has strong levitation ability.and the strong hands-on ability can provide the self-welding of the loose parts.
.Mini Acoustic Levitator: This is a mini ultrasonic levitator device that can suspend foam balls. The device is composed of a MCU STC15W, a driving chip TC4427EOA and two 16mm 40KHz ultrasonic probes. Mainly used for students or DIY electronics enthusiasts to learn about ultrasonic standing wave levitation.
.Working principle:Ultrasonic standing wave levitation is through the existence of a certain distance between the ultrasonic transmitting end and the reflecting end (or another transmitting end) (called the distance of the resonant cavity), the transmitted wave and the reflected wave (or another sound wave) are continuously superimposed and finally form a stationary Wave, the sound wave force received by the object at the node of the standing wave overcomes the effect of gravity and finally achieves the effect of levitation.
.Note: Harmonics are easy to be generated after ultrasonic superposition, resulting in squeaking sound, which can be solved after the distance is extended, but it will lead to poor suspension ability.
Specifications:
.Color: As Shown
.Material: Electronic Components + Copper + Resin
.Product Dimensions: 4.2 x 2.6 x 5.3cm
.Product Weight: 200g
.Package Dimensions: 10 x 10 x 10cm
.Package Weight: 300g
.Packing: Carton Box
Package Content:
.1 x Mini Acoustic Levitation
.1 x 12V DC Power Adapter
.1 x Small Net Spoon
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4.3 ★★★★★
Based on 535 reviews
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Product Reviews
★★★★★ 4
Good
Color: Rose Gold Pink, Size: Case for iPad (A16) 11th/10th Generation
Very sturdy. Good screen protection. Is a little difficult to get to snap together.
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Reviewed in the United States on April 14, 2026
★★★★★ 4
Good deal
Color: Rose Gold Pink, Size: Case for iPad (A16) 11th/10th Generation, Color: Rose Gold Pink, Size: Case for iPad (A16) 11th/10th Generation
**7 MONTH UPDATE APRIL 2026**
The kickstand broke! The iPad is still protected and no damages. Even without an extra screen protector the screen was not damaged/scratched. I wont be changing the stars because we did heavily use this tablet case during our travels. Kids use it to hang on the back of the seat, rotated the kick stand a lot!
The case looks nice. We bought it because its got a kick stand, handle and a strap. I like those features. It looks sturdy and the front already comes with a plastic protector. I think you should still buy one to put underneath if you want extra protection. One star taken off because I had a hard time snapping all the sides back into place. Hopefully this last a while. Bought it for the iPad a11.
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Reviewed in the United States on September 14, 2025
★★★★★ 5
Great protective case for kids and everyday use
Color: Navy/Green
This iPad case is very sturdy and perfect for kids or anyone who wants extra protection. The material feels strong and shockproof, giving good confidence against drops and bumps. It fits the iPad perfectly and all buttons, cameras, and ports are easy to access.
The built-in kickstand is really useful for watching videos, gaming, or schoolwork, and it holds the tablet steady without tipping over. The navy and green colors look nice and make it easy to spot.
Easy to install, durable, and well designed. Great value for protecting an iPad — definitely recommend.
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Reviewed in the United States on March 12, 2026
★★★★★ 5
Very durable.
Color: Purple, Color: Purple
It’s a very cute case also really sturdy. Have had it for a while and even with my daughter being rough with it the case is in good condition and is very protective of the I pad even with no screen protector. It is easy to put on and is light weight.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Kid friendly Ipad case with protection.
Color: Purple, Color: Purple
This iPad case is perfect our kids and the color is so cute. We purchased 2 cases for both kids. The material sturdy yet lightweight. The built-in stand helps keep the iPad at a level for easier viewing and use. It also includes a convenient spot to store the Apple Pencil, making it easy to keep everything together. A great purchase for extra protection and peace of mind.
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Reviewed in the United States on May 24, 2026
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