In general, if you buy for 1800, in order to try active sound cancellation, these headphones are suitable; however, if you buy for 3000, I would definitely not recommend buying them; it's better to buy ordinary good headphones, such as marshall mode eq, which I had before; in terms of sound with xiaomi they are stupid to compare; in terms of sound insulation, they are of course a little worse, but not much. In terms of sound isolation, they are stupid to compare; however About active noise suppression in a separate context: It does work, but you should be aware that it does not block out all sounds. For example, if you use it in the subway, it will block out the general noise of the train, but if there is a whistle or some other high-frequency noise, you will hear it. This is because the typical sound insulation in subway cars is not very good. The function is very neat all things considered.
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