No, you don't have to talk, just open it and listen. Headphones receive signals. Generally, schools reserve headphones for students. I was in 60 yuan for the first two years, and I can listen to the radio with this earphone later.

Necessary items: admission ticket, ID card (if lost, you can bring the ID number certificate letter with recent bareheaded photos issued by the household registration department), student ID card (if lost, you can bring the certificate letter stamped with the official seal of the department), 2B pencil, eraser, black pen, headphones that can receive broadcasting (some schools use radio or public broadcasting), watches (generally there are wall clocks in the examination room), and paper towels.

Note: Before entering the examination room, candidates should take the initiative to show their admission ticket, ID card and student ID card to be inspected by invigilators, and put the relevant documents in the upper left corner of the desk after entering the examination room.