3.

There is no limit on the number of items, but there is a limit on the amount. A package cannot exceed 1,000 yuan, except for single indivisible items.

But it does not mean that you can put as many items as you want as long as they do not exceed 1,000 yuan. If you exceed the range of personal use, it will be easily taxed by customs. So it is better to buy things in pairs, and try not to have more than 3 items of the same kind in one package.