Kickstarter Return Policy

We offer lifetime battery warranty for Kickstarter backers. Our technicians visit the warehouse to update your machines with new batteries on a monthly basis currently, but if there is a great demand for battery changes, technicians will visit the warehouse more frequently. So if you want to change your batteries, simply mail your EF DELTA to us, and we will sort out the rest. We provide a free and exclusive battery-changing service to Kickstarter backers, and will take care of the battery cost and maintenance fee. Due to cost considerations, customers need to cover the freight fees if the batteries need to be changed.

While all of our products are guaranteed for life, we do not offer refunds, returns, or exchanges on items received as Kickstarter rewards (except for product quality problems).

The support we get from our Kickstarter backers is what enables us to run and grow our business, gather customer feedback, design new products and improve existing ones. In the Kickstarter community, the items that you receive after making a pledge are referred to as "rewards" because they are not purchased in the traditional sense. Think of rewards as gifts that are sent to our supporters as a token of appreciation for their support of our business.

Kisckstarter supporters' unreasonable returns, return shipping costs, and any restocking costs that may apply and Kickstarter service fees will be deducted from the refund.
For customers who purchased on, there is no reason to return the goods, the shipping cost of the return and any purchase costs that may be applicable will be deducted from the customer's refund.


We appreciate your understanding of our policy and the support from you. If your reward truly offers no value to you, here are a few things that you could do in the spirit of crowdfunding:

1. Give your reward to a friend. Our products might not work for you, but there are many folks out there who might find them very valuable. We’d love for you to share our gear with a friend of yours.
2. Sell your reward to somebody. Many Kickstarter rewards were purchased below the retail value – if you want to recuperate that value and possibly even more, throw your reward up on eBay.
3. Give your reward another chance. Some of our products can take some getting used to. All of our gear is designed for use in a variety of scenarios. Maybe it doesn’t work for you right now, but perhaps you’ll find the right time and place in the future.

Thank you again for your support and understanding, and please don’t hesitate to contact us at if you have any questions.