How are they shipping to the US so cheaply? I can buy a product for $2 and its ships for free. They must be paying next to nothing for shipping. When i wor

How are they shipping to the US so cheaply? I can buy a product for $2 and its ships for free. They must be paying next to nothing for shipping. When i worked for an e-commerce company it was $8 to $10 per order incurred in shipping costs when our volume was millions of orders per month.