I was led by the reviews and bought these headphones, because. I needed headphones for listening to TV at night with a wire length of 5 m. So, the first connection showed that even plug-in headphones from the same manufacturer sound much better. And when I connected the Technics RP-F550, the sound became several orders of magnitude better, and the declared characteristics are almost the same: 8 - 27000 Hz, sensitivity 105 dB. In general, once again I was convinced that cheap headphones cannot sound normally. I'll have to look for an extension cord.
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