NoiseGard 2.0 active noise cancellation lets users enjoy music in peace.
TalkThrough, one press of a button turns on the external microphone so you can talk to fellow passengers without removing the headset.
Wireless freedom, Bluetooth 2.1
Direct cable option
Easy headset controls in one intuitive cluster
An ideal headphones for frequent fliers who want to be enveloped in their music rather than the drone of outside noise, the Bluetooth-enabled Sennheiser MM 450 noise cancelling headphones provide a detailed sound image, while patented NoiseGard-2.0 technology minimizes background noise in trains or planes. Click here for a larger image.
It also keeps you in touch by mobile phone wherever you are--answer calls wirelessly by simply by pressing a button on the ear cup. The easy-to-use controls are within optimum reach and provide concise "click" feedback, and the invisible high-performance microphone ensures that conversations are clear--making this headset the perfect all-in-one sound solution. It also includes a direct cable option, enabling you to listen as a wired headphone when Bluetooth is not permitted (mobile phone conversations require Bluetooth). These closed mini headphones are embedded with NoiseGard 2.0 technology, which provides up to 90 percent active noise cancellation. They are also equipped with TalkThrough function, which is able to distinguish between background noise and speech, enabling you to continue your conversations with fellow travelers without removing the headphones. When not in use, the MM 450 can simply be folded away and stowed in the included carrying case.
Sennheiser's NoiseGard Technology Sennheiser's NoiseGard 2.0 technology guarantees undisturbed music enjoyment and ensures that you have a relaxed journey. Irritating background noise is minimized by anti-noise, a technology that was initially developed for pilots and which has already been used successfully in the cockpits of major airlines for several decades. And if you want to talk to the person sitting next to you, that's no problem either. The convenient TalkThrough function enables you to conduct a conversation without removing the headphones. At the push of a button, miniature microphones mounted on the outside of the headphones pick up the surrounding sounds while an electronic circuit filters out the voice of the person speaking to you and plays it clearly through the headphones. What's in the Box MM 450 headset, audio cable with in-flight adapter (3.5mm double mono adapter), USB cable, wall charging adapter, carrying case Specifications Wireless technology: Bluetooth 2.1 + EDR; supports A2DP, HSP, HFP, AVCPR profiles Range: Up to 33 feet Noise cancelling: Up to 90 percent Noise cancelling technology: NoiseGard 2.0 (with TalkThrough) Microphone pick-up pattern: Omni-directional Frequency response (headphones):15 - 22,000 Hz Frequency response (microphone):100 – 10,000 Hz Sound pressure level (SPL): 107dB (at 1mW, 1kHz) Ear coupling: On-the-ear Transducer principle: Sealed (closed) Total harmonic distortion (THD): <0.1 percent Listening time: Up to 10 hours (8 hours with NoiseGard) Talk time: Up to 20 hours Standby time: Up to 200 hours Charging time: Approximately 3 hours Compatibility Optimized for MP3, iPod, iPhone (iPod and iPhone are trademarks of Apple Inc. registered in the U.S. and other countries), and portable media players. Also great with in-flight entertainment systems. Warranty The Sennheiser MM 450 is covered by a 2-year warranty with the backing of Sennheiser's worldwide service network.
This review is from: Sennheiser MM 450 Bluetooth Multimedia Headset with Noise Cancellation (Black)
I am not sure where to start!
I own several Sennheiser products including the HD 580, HD 590, HD 600, HD 650, and PXC-450s.
Since I am using my smartphone (Nokia N900) more & more and it works well with bluetooth, I decided to try and replace my TWO year old Plantronics 590A.
The main reason for the purchase of the MM 450s was the "noise-canceling".
Well, after several days of use including in work areas with a lot of "voices" in the background, I have given up on the MM 450s. They sound great but the noise canceling doesn't work very well. I can hear other people's conversations quite clearly when I am in a phone conversation with noise-canceling on (I thought I had it off)!
The MM 450s have also disconnected from my Nokia N900 and Nokia N97 quite often (I have never had this problem with my Plantronics 590s which I currently use all day (+10 hours)).
IF the MM 450s were ~$250, I would keep them because of the great sound... but for $450, I want great sound + noise canceling.
So my set of MM 450s are going back to Amazon!
UPDATE 01/16/2010:
I replaced the MM 450's with my 2nd choice, the Nokia BH-905s! After several days of using them, I think they are almost as good as the MM 450's and the price was only $209.00 delivers (much better than the $450.00 for the MM 450s).
Comparison between both:
Sennheiser MM 450:
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+ Fold up smaller for travel.
+ Sound is best I have heard for bluetooth.
- Price
+ Battery is user replaceable
- Case is CHEAP
- Battery life with noise canceling on was about 10 hours.
Nokia BH-905:
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+ Price is around $200 if you shop around.
+ Case while not small is very good quality (headphones won't get crushed in a travel bag)
+ Battery with Bluetooth + Noise Canceling lasts around 18 hours in my couple of days use.
+ Controls are better laid out (easier to use) than the MM 450s.
- Battery is NOT user replaceable.
Both models:
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+ Both have top notch build quality
+ Both are very comfortable for long term use.
+ Noise canceling on both work when playing music.
- Noise canceling only so-so when in phone conversations (when there are periods of quietness). This is probably to be expected since both headsets are NOT over the ear.
In summary, my choice came down to price for what I got.
I am extremely happy with the Nokia BH-905s...
This review is from: Sennheiser MM 450 Bluetooth Multimedia Headset with Noise Cancellation (Black)
While these are pricey, the sound is by far the best that I've ever heard from a bluetooth headphone.
I'm not an audiophile, but I do like good sounding cans. I've got a set of ER 4Ps, SE 530s, Denon AH D5000s, Nokia BH 905, and now these. The sound is certainly not as rich as the SE530s or as Spacious and complex as the Denons, but the lack of wires... I mean, it's like when I got my first iphone after years of running on treos: a breath of fresh air. But I digress (will come back to the wireless though). The sounds are head and shoulders above the Nokias. I actually bought the nokias first, after buying (and then returning) the PXC310s (which are the non microphone enabled version of the MM450s). i immediately fell in love with the 310s' sounds, b...
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