On the tariff of overseas travel.

All things bought abroad do not need to pay extra customs duties, and they have already paid taxes at the time of payment. Some goods or shopping malls can also get tax refund at the airport tax refund office. Please ask the mall for relevant information.

Only when buying cigarettes and alcohol, there are certain restrictions on how much you can take out of the country. You don't need a special customs declaration form to buy other personal belongings.

You don't need to write anything special about the electronic items you hold when you go through customs. Don't put it in your luggage when you go through the security check, just put it in a basket with your belongings, and it will be the same when you come back. Whether you bought it or brought it, you went through the security check with your belongings.