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Based on 1006 reviews
I bought these for work, for use in the office and in a slightly noisy work environment. This is the most disappointing pair of “high-end” headphones I've had. The following things were especially disappointing: If the 450BTNC headset loses connection, then it keeps saying “Lost connection... Lost connection... Lost connection” - (yes, I know it has lost connection to my computer when I went into the coffee room, you only need to say it once). It does the same thing if you try to connect to multiple devices - it works really badly. The headset also does not have “auto-off”, to turn off the headset if not in use. Nor is it possible to configure anything at all, since Sennheiser's app doesn't work with this headset. When connected to a Windows laptop, you get two “sound devices” that you can choose from: “HD 4.50BTNC Hands-Free”, and “HD 4.50BTNC Stereo”. If I choose “HD 4.50BTNC Hands-Free”, then there's often some noise that seeps through the headset - almost as if noise-cancellation is disabled. The same happens often when a sound is played in Windows, for example, a notification, a lot of ambient noise comes along. Playback is also reasonably unconsistent. Right now, I've chosen “HD 4.50BTNC Stereo” as a playback device in Windows - and no sound will come in my earbuds - only if I switch to “HD 4.50BTNC Hands-Free” (which, in turn, has a lot of noise). Real annoying that it doesn't “just work”. I have, by comparison, a few Bose QC35 at home which do things right. They're easy to set up with multiple devices, and it's easy to switch from one device to another. They also only say “Lost connection” the one time - instead of repeating it endlessly. Just as they also have “auto-turn off” so the headset hasn't run out of battery on Monday morning if you've taken it off on Friday afternoon and forgotten to turn it off. I absolutely can not recommend this product, and I can't imagine buying a Sennheiser product again just tentatively.
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Lowest price for Sennheiser HD4.50 BTNC is £100. This is currently the cheapest offer among 4 stores.
These headphones is a good choice for those looking for a great sound experience. They connect wirelessly via Bluetooth and the active noise cancelling filters out any disturbing background noise.
Over-ear headphones are often larger than other types but have more hardware and often better sound quality. To connect with a 3.5 mm connector is quick and easy, you just plug them into your device. The wired connection also gives you high sound quality.
With a really long 1.4 metre cord, it's so much easier to plug it into your computer or phone. None of the limitations that a short cord brings with it. The lower impedance (resistance) means that these headphones can be connected to your phone or other portable devices without the use of an amplifier.
This is a product with a current lowest price of £99.99. It has a range of built-in features, which makes it a very useful model. These headphones from Sennheiser can bring you a whole new sound experience.