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.
n***o –
Arrived well packaged and it is great, I really liked its ability, obviously it is standard audio quality, but it fulfills the task. The treble and bass are adjusted, that helps a lot. I recommend if you are looking for something simple, economical and useful.
E***z –
It’s small but very nice
E***a –
I received the amplifier ak-170, but when I turn on the cable in the audio input cuts the audio from the car sound, I did test and I realized that when I turn on the wire-from the connector and what happens this problem, what a crazy bug😡
zahidislam2000@gmail.com –
Sorry to hear about the issue! It sounds like there might be a grounding or compatibility problem with your setup. We recommend double-checking the connections and ensuring the cables and input sources are properly grounded. If the issue persists, please reach out to us or the manufacturer for further assistance. We’re here to help! 🙏
O***o –
Very good amplifier
S***n –
Great price and quick delivery. I will be using it to drive a couple of small bass-shakers. I think it will work just fine.
f***r –
Good product ideal for my projects has good power adapts to the speakers I had and as for the shipping arrived very quickly thanks
I***z –
It is small and powerful, not bad, the metal structure is a plus, the ankle boots have a good touch and it looks very good next to the decoration as you can see
B***z –
Arrived on the correct deadline for Brazil. Using to play two boxes of the 55W Sony and 6 onhms working perfectly with an original 12V 2a source. I found it a bit fragile and left it playing the box 70% the volume, bass and treble adjustment. I noticed it got a little heated.
p***s –
not tested, waiting for rca cables to test it with. Powers up. Overall, nicely built.
zahidislam2000@gmail.com –
Thanks for the update! We’re glad you’re impressed with the build quality so far. Let us know how it performs once you test it with the RCA cables! 😊🎶
O***s –
Arrived super fast, works perfectly quality great for the amount paid. I would buy again (although I tested little) more worth the purchase.
Customer –
The product is perfect, I thought I could only connect small equipment and really not, move large sound equipment, plus the size is excellent. With all confidence I recommend it
S***n –
20 watts x 2
c***r –
I Love it I just love it!!!!!
M***z –
Great device for its price and its energy consumption. The audio of a vinyl format with a mineral CD-1100 to speakers of 100 watts per channel was pre-amplified at 8 hours from a home team and at the 30% it seemed to have the ideal sound to listen to the music👶🏻👍
zahidislam2000@gmail.com –
Thank you for sharing your experience! We’re thrilled to hear the AK170 performed so well with your setup. Enjoy the music and happy listening! 🎶👍
k***r –
I really like these devices, they sound very strong and without distorting as long as you have a good supply
n***r –
Very good product highly recommend this product. Very good product highly recommend this product. Very good product highly recommend this product.
S***z –
Excellent Product!, I thought it was not an official, but it exceeded my expectations. Thank you!!
H***t –
Sounds more or less, but good for the price