The World Trade Organisation (WTO) has struck a "landmark" deal to cut tariffs on $1.3 trn (£838bn) worth of technology products.
The deal will update the 18-year-old IT Agreement and add 200 products to the zero tariff list.
It is expected to give a boost to producers of goods ranging from video games to medical equipment.
The WTO says the sum is equal to global trade in iron, steel, textiles and clothing combined.
"Today's agreement is a landmark," said WTO Director-General Roberto Azevedo.
"Eliminating tariffs on trade of this magnitude will have a huge impact," he continued.