dubious model, like the sound is not bad and the design is not prone to breakage, but the usb sound card is made of cheap plastic and jack 3.5 on it . it’s better to forget about 7.1 right away, the sound distortion is colossal and it’s impossible to adjust. if there was an opportunity to listen in the store, I would choose a different model. Different pros: Simple and functional design similar to pilot headsets. comfort when using, does not put pressure on the head. Cons: usb sound card - obviously not the best, built-in 633 is many times better. DTS (also known as 7.1) - just darkness . the model seems to be newer than 633, and the sound is terrible, like with a bucket on your head in an iron garage. echo, hum, bass and over the top surround effect. Can't be configured, just enable or disable. without 7.1 they sound not bad and comfortable.
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