The single-item or combined-to-single-order for non-alcoholic, non-tobacco, non-pharmaceutical goods from outside the US to the US is $800 with some exceptions.

Many Chinese sellers use a US shadow address to avoid even this limit, with the Chinese supplier acting as a 'shipping agent' for the US address. In this case, the item is technically of US origin. And in the listing, the 'location' will be this shadow address, not China.

Put another way, don't worry about it.

Peter Wieck
Melrose Park, PA