Candidates taking CET-4 and CET-6 should choose headphones with FM. Because CET-4 and CET-6 will have a transmitter in the examination area, you need to choose FM headphones to receive the broadcast listening test.
CET-4 requires you to bring your own headphones that can be tuned to FM. You can tune to a unified channel that plays listening audio during the exam. Generally, college students will be given an earphone with radio function. Before the exam, candidates need to debug their headphones in advance and prepare several batteries to avoid special circumstances.
Listening for CET-4 and CET-6 requires headphones that can be tuned, and you can listen to campus radio, because the listening school will play it uniformly. General schools will issue FM headphones in a unified way. Before the exam, it is necessary to determine the channel that the school plays listening, adjust the headphones in advance, and check whether the signal is stable and whether the battery is charged.
You can buy guaranteed ones through formal channels. In fact, the simplest thing is to buy a senior's second-hand or borrow it. If you want to buy one, Tmall 30-50 yuan will do, with good sound quality and clear sound. Anyway, once or twice is enough, maybe more. The main thing is to be prepared, and it is more worry-free to pass once.