We guarantee replacing any items damaged during shipping with no charge. Buyers shall provide detailed information about the faulty items before sending back the items for an swap.
All items sold from our online store require some expertise to use. The expertise, as an example, can be the ability to set up development environment to compile provided Arduino sketch properly. We don't accept any kind of change-of-mind return. If buyer wants to return items for reasons like "I don't know how to use them" or "I am not smart enough to play with them", a 15% restocking fee will be charged.
Unlike consumer products, our products are designed and provided as DIY friendly. We allow users to open up the product enclosure for research or modifications. Once this is carried out and any unexpected damage is made, no returning or swapping is accepted.