This is the introduction of Sennheiser xc450 from other websites. You can also look at the comments of other websites.
PXC 450 is currently the best ear-wrapped high-end travel headset to suppress environmental noise, equipped with NoiseGard? 2.0 technology and intercom function.
PXC 450 brings unprecedented auditory experience to people on the road, thanks to its self-adjusting diaphragm damping and patented Duofol diaphragm, which can prevent unnecessary overtone vibration, thus ensuring a highly natural and realistic sound quality.
Northgard? Originally developed by Sennheiser, it is an active noise compensation system for pilots. Pilots will work in a strong noise environment and must be able to effectively prevent noise from affecting the quality of calls. Northgard? It can actively compensate noise, which is based on the physical principle of sound wave and anti-crosstalk wave.
Northgard? 2.0 perfected NoiseGard? This is due to the use of more optimized circuit design and more efficient microprocessor. It also uses a higher quality microphone, so it can pick up annoying noise more complicated. The specially developed filtering algorithm improves the effect of active noise compensation to 90%(23 dB). Of course, if you don't use batteries, don't turn on NoiseGard? This earphone can also be used, and it has certain passive noise suppression.
People who wear PXC 450 headphones don't need to take off their headphones if they want to talk to people around them: when the TalkThrough function is turned on, the professional microphone connected to the headphones will pick up all the audio signals nearby. Annoying background noise, such as the noise of the engine on the plane, will be filtered out by the filtering circuit, so that only nearby voices will enter the wearer's ears through the microphone and headphones with the best sound quality.
The PXC 450 can be folded and comes with a practical carrying case, two AAA batteries and two kinds of adapter plugs (dual 3.5mm and 6.3mm). There is a detachable and replaceable volume controller on one side of the headphone cable, which provides users with the greatest possible convenience.
Features:
Experience of fever-grade headphones on the road: excellent sound quality is attributed to self-adjusting diaphragm damping and patented Duofol diaphragm technology.
Northgard? 2.0 Active noise compensation can ideally eliminate the noise of the surrounding environment, up to 90%.
Comfortable wearing and high level of passive noise suppression are attributed to ear pockets and stretchable headband made of high quality materials.
TalkThrough function: You can talk to people around you with headphones on.
Volume controller integrated in earphone
Suitable for people who travel frequently: comfortable, sturdy and foldable earphone design.
Even if the battery is not used, the headset can still be used in passive mode.
It is suitable for portable and desktop audio players such as entertainment systems and MP3 players on passenger planes.
Long service life, top-grade material, replaceable ear bag and headphone cable.