Return items will be accepted within 40 days when is the date of receiving the goods. Customized items cannot be returned or exchanged. Items bought with an e-gift card are exchangeable only; refunds are not applicable.
Free Gift
Welcome to Roymall, your professional website for purchasing premium department store gifts. We highly value and appreciate your support, and we want to express our gratitude by adding an extra touch of excitement to your purchases. When you shop with us, you not only get to enjoy high-quality products that enhance your lifestyle, but you'll also receive an exclusive free gift with every order you place. Ready to explore our collection and find your perfect gifts? Browse our selection of premium department store items, place your order, and look forward to the excitement of your free gift arriving alongside your purchase.
Shipping Policy
We will work hard to deliver items to you after receiving your orders and make sure they arrive safely. Delivery details will be provided in your confirmation email.In most cases, orders are processed within 2 days.Under special circumstances, it will be delayed as follows: When you place an order on Saturday, Sunday or public holidays, it will be delayed for 2 days..Normally, it needs 5-7 working days (Monday to Friday) without being affected by flight delay or other environmental factors..Because our shipping service is worldwide so the delivery times will depend on your location so it may need a few times and please wait patiently if you are in remote districts or countries.
1. Return & Exchange Policy
We only accept items purchased from roymall.com. If you purchase from our local distributors or other retailers, you cannot return them on our side.Final sales items or free gifts are not acceptable for a return.To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.After receiving return instructions from us, please package up your returned items and drop your package at the local post office or another courier. We will process your return or exchange item within 3-5 working days after we receive it. The refund will be processed and credited automatically to your original method of payment.No returns or exchanges can be accepted if the product was custom produced, including custom size, custom
color, or custom printed.Need more help, please contact us. service@roymall.com or Whatsapp: +447549870296
2.Refund Policy
You'll get a full refund or 100% store credit after we receive the returned package and check it. The refund will be processed and credited automatically to your original method of payment.Please note that shipping costs and any duties or fees are not refundable. The extra shipping costs are non-refundable once the package has been shipped. You are responsible for paying these fees and we’re unable to waive or refund them, even if the order is returned back to us.Once we received and confirmed your returned item, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.If you have any problems regarding the refund process, please contact us. service@roymall.com or Whatsapp: +447549870296
Videos for similar product
Loading product videos...
❮
❯
Products related to this item
Loading related products...
❮
❯
Specifications: Power Input: DC12V(0.5-1A) Function: Ultrasonic suspension, DIY electronics making Size: 44*40*66mm Weight: 22g
Some components may be changed, but this does not affect use. Based on the actual goods received.
Note: This is an unsoldered product, you need to assemble it yourself.
Description:This levitator operates at a frequency of 40KHz in the air and can capture light objects with a density of 2-3mm in diameter, such as foam balls, ants and other tiny objects. They can be stably suspended in the air for a long time, and the motherboard will heat up slightly. The circuit mainly consists of a microcontroller, a driver chip and 2 ultrasonic transmitters. Mainly used to learn about ultrasonic standing wave levitation.Working principle: Ultrasonic standing wave levitation is based on the fact that there is a certain distance between the ultrasonic transmitting end and the transmitting end (or another transmitting end) (called the resonant cavity distance), and the transmitted wave and the reflected wave (or another sound wave) are continuously superimposed, and finally form Standing wave, the sound wave force on the object at the node of the standing wave overcomes the effect of gravity, and finally achieves the effect of levitation.
How to play: Use tweezers to hold the small foam ball, and gently place the foam ball between the two ultrasonic probes, and the foam ball will float. Features: 1. Ultrasonic Suspension: This DIY kit allows you to learn the fascinating concept of ultrasonic suspension, creating an impressive display of floating objects. 2. DIY Electronics Making: Engage in the exciting world of electronics by assembling various components to create your custom-made electronic device. 3. Maker Competition: Perfect for participating in maker competitions that test your skills and creativity in designing innovative electronic projects. 4. ABS Plastic Material: The kit is constructed with high-quality ABS plastic material, ensuring durability and long-lasting use. 5. USB Power Supply: Conveniently powered by USB, making it compatible with various power sources for easy use. Package includes: 1x Upper PCB board 1x Lower PCB board 2x Ultrasonic transmitter t 5x M2*4 screws 2x M2*7 two-way copper column 2x M2*39+3 copper column 5x M3*6 screws 4x M3*15 two-way nylon column 1x 25V 33UF-100UF 1x DC005 building 2x 104 monolithic capacitor 1x 4.7K resistor 1x 3MM LED is red and red. 1x 1117-5.0 Voltage Stabilizer Chip 1x STC15F104W (burned program) 1x TC4427
Roymall C.o.
Free Gift
Shipping Policy
Return Policy
Coupon Code
Direct purchase from the factory 
Electronic Components & Supplies
DIY Electronic Kits
