We offer free shipping and commercial shipping for our products. Free shipping is available for some countries, while commercial shipping is available for almost all countries.

Free shipping generally takes about 15 to 20 days to arrive, but some countries may need 20 to 30 days. It depends on the destination country and the customs process.

Commercial shipping costs vary from country to country and product to product. You can check the shipping fee at the checkout page before placing your order. Commercial shipping usually takes about 5 to 10 days to arrive.

Commercial shipping fee does not include any taxes or fees that may be charged by the customs office of your country. Please make sure you can cooperate with the customs office to finish clearance and pay any taxes or fees if required.
Note: We are not responsible for any delays or issues caused by customs clearance but we can help to provide documents for the clearance.

We completely get it, we change our minds too! Once an order is placed, please email us to alter or cancel it before shipping. If the package is picked up by delivery, I'm afraid we cannot cancel that.

Should the item(s) not work out, make sure to exchange or return it for a refund.

Once your order is placed, you will receive a confirmation email letting you know that our fulfillment team has received your order. It takes 2-5 work days to fulfill. After the package is picked up you will receive an email notification with your tracking information. Shipping fees are non-refundable in the case of returns.

Yes, we ship to most countries over the world. Shipping costs will apply and will be added at checkout.

We guarantee that you’ll have a refund if you are not satisfied with our products. You can return or exchange the products within 30 days of receiving them. Just contact us by sending emails to customer@entertech.cn.

If you live in the US, you can return or exchange the products to our warehouse in CA. Please contact us to get the return address and instructions. For other countries, please contact us before returning or exchanging the products to learn where you should ship them.

If the products are functionally defective, we will cover the shipping fee for returning or exchanging them. If the products are not functionally defective, you have to pay for the shipping fee yourself.

After we receive the returned products, we will inspect them and issue the refund within 7 business days. The refund will be processed to your original payment method. Please note that it may take some time for your bank or credit card company to process and post the refund.

No. The app is free to download and use. If you don't need the premium features like lessons, sounds, advance biofeedback metrics, you do not have to subscribe. The Timer mode is free to use. You could listen to any audio you like from other apps and use the Timer mode to record Biodata.

iPhone and iPad iOS 13 +
Android 6.0+

Yes, you may go to Me - Data Management to export all your raw data including brainwaves, heart rate, etc into a CSV file.

Yes. You can play audio from other apps while record Biodata using Timer mode as long as you keep Flowtime running in the foreground.