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 the kits and parts being sold from our online store require some expertise to use. The expertise, as an example, includes the ability to set up development environment to compile our provided Arduino sketch properly. If a buyer want to return their items for reasons like "I don't know how to use them" or "I am not smart enough to play with them", the buyer have to to pay a 15% restocking fee.
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.