Yes, one per person (including children). Suggested automated explanations can be booked in advance. If taken through a guided browser tour, tickets can be purchased and validated on the spot.

Yes, $30 per rental.
Yes, adults and children are all the same.
“Okay, one person one vote, buying big or small all want to buy, one vote gets an earphone.”
Yes, one person one vote (including little ones as well). It’s recommended to book ahead for guided explanations, and if you choose to watch through a video browser, you can purchase and validate it on site.

Yes, it’s 30 yuan per rental.
Yes, adults and children are the same.
Yes, one person one vote, size doesn’t matter, one earphone per ticket.