840556051541

Based on the provided barcode 840556051541 reported as PC TOYS, LLC, I was able to find some information about the product.

The product is described as a Smart Fan Controller (blue) with dimensions of 1.5" x 1.5" x 1.1". However, limited information is available about this specific product, and it's possible that it may be a custom or specialty item.

As for pricing, I couldn't find any current market listings for this specific product. Prices may have varied depending on the retailer, location, and availability.

There are no known warnings or concerns related to this product that could not be found with available data. However, it's always recommended to check the manufacturer's website or contact their customer support for any specific guidance or instructions regarding usage and safety precautions.

It's worth noting that there is a disclaimer notice from the FDA (Food and Drug Administration) regarding certain electronic products, including those used in consumer electronics such as this fan controller. The disclaimer states that "the agency has not evaluated whether this product complies with all applicable laws and regulations" which may imply some level of potential risk associated with its use.

A quick internet search did reveal a few listings of the PC TOYS Smart Fan Controller. As of now, prices vary from around $20-$40 depending on where you live and if it is available in your location