Clothes, toothpaste, change clothes, if possible, buy them in advance, or take them with you.

Bring some snacks, O(∩_∩)O~, because there is no snack shop.

Take less mobile phones, bank cards and cash, because there may be little time to spend.

There is internet in it, so you can bring your laptop.

That's basically it.

I work in Dongguan Universal IELTS. You can ask me some detailed questions. I will give you the answer online, or you can call our customer service, if you are in Dongguan, 0769 2 168008.