Shipping and delivery
We are proud to offer international shipping services that currently operate in over 200 countries and islands worldwide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.
How do you ship packages?
Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.
Do you ship worldwide?
Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.
What about customs?
We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.
How long does shipping take?
Shipping time varies by location. These are our estimates:
| Location |
*Estimated Shipping Time |
| United States |
10-30 Business days |
| Canada, Europe |
10-30 Business days |
| Australia, New Zealand |
10-30 Business days |
| Central & South America |
15-30 Business days |
| Asia |
10-20 Business days |
| Africa |
15-45 Business days |
*This doesn’t include our 2-5 day processing time.
Do you provide tracking information?
Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.
My tracking says "no information available at the moment".
For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.
Will my items be sent in one package?
For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you have specified combined shipping.
If you have any other questions, please contact us and we will do our best to help you out.
Refunds & returns policy
Order cancellation
All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.
Refunds
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
- You do not receive them within the guaranteed time (45 days not including 2-5 day processing)
- You receive the wrong item
- You do not want the product you have received (but you must return the item at your expense and the item must be unused)
We do not issue the refund if:
- Your order does not arrive due to factors within your control (e.g. providing the wrong shipping address)
- Your order does not arrive due to exceptional circumstances outside our control (e.g. not cleared by customs, delayed by a natural disaster)
- Other exceptional circumstances outside the control of tech.diydynamic.com
*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on page.
If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.
Exchanges
If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.
Please do not send your purchase back to us unless we authorise you to do so.
C***i –
Interesting effect.
Z***i –
good
Customer –
Everything is correct. The product corresponds to the description6 and the time in which it was shipped was very short.
Customer –
Good seller and fast shipment
w***r –
I recommend the Seller!
M***k –
It was quite easy to set it up. One thing that could help me more would be information about orientation of: 1. ultrasonic transmitter (it took me some time to find that the black dot is the positive terminal) 2. integrated circuits (only one of them had a dot at the corner) With a bit of research I could put it all together. Also, it would be nice to explain that the styrofoam balls won’t get elevated from the bottom ultrasonic transmitter. I found a video that shows how to put them into the air. What works the best for me is a piece of mosquito net. I put a ball onto the net and move it into the device. The ball starts levitating and I can easily move the net away. I’ve tried using tweezers but due to electrostatic forces, the ball stuck to the tweezers.
zahidislam2000@gmail.com –
Thank you for your feedback and tips! 😊 The mosquito net idea is brilliant, and we’ll improve the instructions for better clarity on transmitter and IC orientation. Glad you managed to set it up! 🚀
S***l –
Fast Delivery
c***s –
Arrived in reasonable time. Assembly details very limited which is sad as components are all there just no mechanical assy details
Customer –
Small size but perfect for training
a***e –
fast shipping, have to build it.
m***m –
Production arrived mounted and works perfectly
M***k –
Works, small power.
j***r –
Good
a***s –
Arrived properly packed, undamaged. Arrived early, the product quality as such, see good. I love it. Now to try it. The bad thing is that he doesn’t bring the power cord, but Oh I’ll manage. The publication should indicate this detail. Is smaller than I expected.
zahidislam2000@gmail.com –
Thank you for your feedback! 😊 We’re glad you love the product and that it arrived safely and early. We appreciate your suggestion about including the power cord detail in the listing—your input helps us improve. Have fun experimenting with it, and feel free to reach out if you need any assistance! 🚀
F***S –
For a Christmas gift…
B***e –
Perfect thank you