The instructions on how to use it are not very clear, which leaves the buyer with many questions.

Product matches the description, thanks to the seller.

It functions. While I question its real-world application, given the prevalence of radio signals like WiFi, technically speaking, it performs its intended function.

I'm happy the item arrived quickly and seems undamaged thanks to the packaging. However, I'm a little let down that it didn't come in the box with a molded insert shown in the product's video and pictures, which would have been perfect for storage. Now I need to buy a separate carrying case, adding to the cost. Does the manufacturer, who remains unknown, send different versions of the product to vendors – some boxed and some not – so that customers like me have to pay extra for a proper box?