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Sennheiser HD 450BT Bluetooth Headphone Review: Enjoy your own music space after work

In the hustle and bustle of the city, most of the workers live busily every day, in addition to eating, sleeping and working, the rest of the leisure time is naturally very precious, here is a saying that: how happy life is since ancient times, stealing half a day of leisure, on the way to commute, looping their favorite songs, they are immersed in the beautiful melody of music, soothing the fatigue of the day, there is nothing more comfortable than this.


However, it seems that it is not easy to have a quiet environment to enjoy music in a cold winter of wind and snow, the cold wind on the road, the noise of the bus and subway... The music feast in the ear can not be carried out happily, some people may think that they can’t afford those brand wireless Bluetooth noise-canceling headphones on the market, while Sennheiser HD 450BT head-mounted active noise-canceling Bluetooth headset today in the PConline review may change your mind.


Appearance: Light, stylish and trendy


We got the Sennheiser HD 450BT white version, when we first saw it, the first impression reminds us of a familiar predecessor HD 4.50BTNC that also made plenty of loyal customers fascinated with its classic shape. Different from the older version, the iconic Senhai metal logo on the head beam has been replaced with a brown-gray logo with a frosted texture, which is the most obvious change, HD 4.50BTNC is likened to a predecessor who inherits the family-style, HD 450BT is a young man dresses in fashion with novelty and trendiness, it also weighs a lot less. The previous HD 4.50BTNC is like a classic song, but now HD 450BT is a trendy pop hit that young persons love.


For Sennheiser HD 450BT, The innovation and fashion not only reflects on the overall visual style change but also its appearance details, HD 450BT pays more attention to the integration of appearance, providing a slightly Nordic minimalist style, eye-catching white main melody runs through the head beam and unit of the headphones, the brown-gray decorative ring on the head beam and the logo on both sides complement the overall white, compared to white + champagne gold on the market, the white + brown-gray on the HD 450BT is more attractive.


Minimalist style on the head beam has also been fully implemented, HD 450BT head beam is wrapped in soft silicone where is covered with a layer of skin-like coating, in line with the overall perception of simplicity, thanks to the thin layer of silicone, it always provides a better wearing experience, comfortable when in contact with skin, plus a lightweight of only 238g, it won’t put pressure on the head after a long period of listening. Head beam supports 13 levels of length adjustment even you have a large size head. The folding design is also supported, fold the headphones when you go out, store them easily randomly in a headphone bag.


Sennheiser HD 450BT adopts the unit cavity of the all-inclusive ear headset, which is made of artificial high-protein leather wrapping memory foam, soft to the touch with a certain degree of breathability, and the all-inclusive ear headset can be the big savior of the winter ear, so enjoy the melody at the same time, but also protect your ears from the cold wind. The exterior of the cavity has a fine matte texture free from a large number of fingerprints. The operation area is located in the lower edge of the right side of the cavity rather than on the surface, we can find the headphone switch/pairing key, volume key, play-and-call lever, and a button to quickly activate the voice assistant, simple and easy for a starter.


In terms of interface, HD 450BT adopts the mainstream USB Type-C, which supports fast charging, from zero to full in only 2 hours, the headset has up to 30 hours of battery life, and monitors the power through the APP. It is also equipped with a 3.5mm interface that allows for a wired connection, which can be used on computers and other devices, and you can also use the wired connection to enjoy music when the headphones are out of power.


Subjective Review feeling: mellow sound and noise reduction to meet daily needs


Before we start the audition, let's take a look at the Sennheiser Smart Control APP, which is a mobile phone APP created by Sennheiser, which requires a connection before use, it monitors the status of Bluetooth headphones, provides an easy-to-use EQ equalizer for sound adjustment, and upgrade the headphone firmware. To ensure the original sound of the headphones, this review is carried out in the state of turning off the headphone EQ.


Sennheiser HD 450BT supports ANC active noise reduction, as for its noise reduction performance, benefiting from the closed cavity design and ANC active noise reduction, HD 450BT can eliminate wind noise on road, a slight engine sound can be heard when cars pass by, in the peak period of the subway, we can hear the train running and muffled sound between the surrounding passengers, HD 450BT eliminates the surrounding noise imperceptibly, and for commuters, this Bluetooth headset is a good complement, offering a comfortable and quiet personal space on the way to work.


then the performance of HD 450BT in the noise reduction mode, the sound impresses me with the warmth and mellowness under the AptX protocol, if listen to Senhai headphones frequently, you can easily recognize that it is Senhai's unique musical taste, low frequency deep in the heart, just right overtone control, the mid-frequency is full of charm, warm but not mushy at all, which is also Sennheiser's unique tuning skills.



The mellowness of the low and medium frequencies makes the high frequency of the HD 450BT well-conformed, so that it sounds particularly smooth and comfortable as a whole, like a thick latte in our throat, stretching and smooth, the sound stage makes us feel as if we were in a live house, which is suitable for listening to some little love songs or slower-paced pop music. If you prefer a warmer sound, this model is definitely to your taste.

Finally the battery life, after 2-3 hours of daily use in the review room for a week, there is still 50% of the power left, which is basically in line with the officially declared description of 30 hours of battery life, HD 450BT supports Bluetooth 5.0 and AptX ™ Low Latency, supporting low power consumption and low latency wireless transmission characteristics.



In the hustle and bustle of the city, noise-canceling headphones bring us a spiritual oasis of the soul, immerse ourselves in the music we love, temporarily forget the pressure of work, and relax our body and mind. Sennheiser as an old headphone manufacturer, attaches great importance to the needs of consumers, from the appearance HD 450BT caters to the aesthetics of young consumers, while also taking into account the excellent user experience, the price is also respectable, if you can’t afford to buy such top noise-canceling headphones as Momentum series, and are interested in the tranquility of active noise reduction, then Sennheiser HD 450BT will be a good choice that you can’t miss.



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