Beyerdynamic DT 770 PRO 250?. Cablato 5 35000 Hz MUSICA 270 g Cuffie Nero 35 KHz 270 g. 5 35000 Hz. Beyerdynamic DT 770 Pro Headphones. DT 770 PRO 250 OHM. Audio Specifications : Frequency Response 5 35000 Hz Sensitivity 96 dB.
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