I need to ship to US but I am completely new to shipments outside Europe. Do I need to declare something on the package shipping label in order to avoid problems with the customs?
I am saying this because, for example, OSHPark (which send bare PCBs from US) is declaring what type of stuff is in the envelope and its price. What happens if I ship an envelope with just the sender/recipient address using a normal public postal service? There is a particular form to insert other data like the good type and its value, if needed? Can I do something to speed up the shipment to US or other non EU locations?