Right, it's only about imported electronic components like resistors, tantalum capacitors, LEDs, displays, etc. If you use these and assemble the boards inside the US, you'll get punished. If you continue using these parts and move the production and assembly abroad, you are fine (oh the irony). If you can source equivalents for those parts from the US, you'll more than likely pay more for them. In cases 1 and 3, the customer will have to pay for the increased production costs as well or the manufacturer has to lay off employees to compensate for the increased production costs, so you're basically left with choosing between increased sale prices or unemployment.