Instructions for Use
Page 5
... 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 active noise compensation is situated on the ear. ̈ When...aircraft) or by low-frequency sound is completely drowned out. Reduction of subjectively perceived noise level NoiseGard™ are wearing the NoiseGard™ HDC 451 you will still be used as a normal headphone without having to turn the volume up as „upward-masking" by means of a ...
... 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 active noise compensation is situated on the ear. ̈ When...aircraft) or by low-frequency sound is completely drowned out. Reduction of subjectively perceived noise level NoiseGard™ are wearing the NoiseGard™ HDC 451 you will still be used as a normal headphone without having to turn the volume up as „upward-masking" by means of a ...