Sennheiser HDC 451 Support and Manuals

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Instructions for Use - Page 4

...Andruckkraft Gewicht ohne Kabel Kabel Stromversorgung Betriebszeit Anzeige Lieferumfang HINWEISE NoiseGard™ HDC 451 dynamisch, offen 20 Hz - 18.000 Hz 160... hören? - can permanently damage the hearing. With the NoiseGard™ system, Sennheiser have noticed them at one time or another: ̈ Nervousness ...instructions explain its functioning principle and operation.
Instructions for Use - Page 5

... subjectively perceived noise level with Noisgard 20 100 8 200 500 1000 2000 5000 Frequency / Hz NoiseGard™ HDC 451 The first „open-air" stereo headphone with NoiseGard™ active noise compensation At just 110 g, this „open-air" stereo headphone with NoiseGard™ Warning Signal Attenuation in addition to turn the volume up as a check. Switching...
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  • Instructions for Use
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