What are "Open-Box" products?

At https://respondet.com we offer both Huion and Netatmo "Open-Box" products. What are they exactly?

"Open Box" products are products that can no longer be sold as "new" as the box has already been opened once. For example, they have been used at a trade fair. As these products can no longer be sold as "new", we offer them at a considerably lower price at https://respondet.com.

These "Open-Box" products have been thoroughly tested and are as good as new. These products do NOT have any defects. Apart from the fact that they are unsealed, they cannot be distinguished from a "new" model.

You will receive free technical support and 1 year warranty on top of your purchase at https://respondet.com.