Sennheiser Updates Travel Headset Line

Sennhesier updates its Bluetooth travel headset line.  We bring you the details!

Sennheiser announced updated versions of their travel headsets that support apt-X, an emerging Bluetooth standard that enhances performance.  Here is what they announced:

Sennheiser Launches apt-X Compatible Versions of its Best Selling Bluetooth® TRAVEL Series Headsets


New MM 400-X, MM 450-X, MM 500-X and MM 550-X Headsets Provide Increased Fidelity and Clarity for both Music and Phone Calls



OLD LYME, Conn. — May 7, 2012: Microphone and headphone manufacturer Sennheiser announced that it has launched enhanced versions of its MM 400-X, MM 450-X, MM 500-X and MM 550-X TRAVEL Series headsets. The new models are now compatible with the apt-X® codec, which provides enhanced fidelity and clarity whether users are listening to music or making calls.


The apt-X® codec offers audiophile travelers an enhanced Bluetooth® listening experience through the use of proprietary audio codec compression algorithms. Just like the earlier MM models, the new Sennheiser apt-X compatible headsets are compatible with any Bluetooth® enabled device that supports A2DP and HFP/HSP profiles including computers, smartphones and tablets and will benefit from increased fidelity when using with devices utilizing apt-X®.


“The new Sennheiser MM 400-X, MM 450-X, MM 500- X and MM 550-X headsets take advantage of the latest advances the CSR group has made in achieving a Bluetooth wireless sound experience comparable to a wired one,” commented Eric Palonen, senior product specialist, consumer electronics, Sennheiser USA. “These models contain the same features and functionality of their predecessors, and additionally, listeners will now be able to experience increased fidelity whether they are listening to music or making calls.” 


Consumers using computers without apt-X can still benefit from Sennheiser’s use of high-quality Bluetooth® chipsets by pairing any of the new TRAVEL Series headsets with the new Sennheiser BTD 500 USB dongle to add Apt-X transmission to their computer-based music system.


The new MM 450-X and MM 550-X TRAVEL Series headsets also combine the first-class comfort, quality and convenience of a state-of-the-art Bluetooth headset with a luxury noise-canceling headphone. These headsets features Sennheiser’s exclusive NoiseGard™ 2.0 active noise cancellation technology and TalkThrough technology enabling travelers to communicate with people nearby without removing the headset. Additionally, the MM 550-X utilizes SRS Labs’ SRS WOW HD™ technology for a more exciting listening experience at the touch of a button.


The MM 400-X, MM 450-X, MM 500-X and MM 550-X are available now at the street prices of $269.95, $449.95, $329.95 and $499.95 respectively.




MM 550-X, MM 500-X

MM 450-X, MM 400-X

Wearing style

Around the ear

On the ear

Transducer principle

Dynamic, sealed (noise isolating)

Dynamic, sealed (noise isolating)

Bluetooth technology

Bluetooth 2.1 + EDR / supported profiles: A2DP, HSP, HFP, AVRCP

Talk time

Up to 20 hours

Listening time

Up to ten hours (without NoiseGard; with: up to eight)

Note: MM 500-X and MM 400-X models do not have noise-canceling function

Charging time

Approx. 3 hours


Up to 33 feet


6.3 oz.

3.8 oz.

Frequency response (headphones)

15-22,000 Hz

Total harmonic distortion


Sound pressure level

107 dB

Frequency response (microphone)

100-10,000 Hz

Mic pick-up pattern




Sennheiser is a world-leading manufacturer of microphones, headphones and wireless transmission systems. Established in 1945 in Wedemark, Germany, Sennheiser is now a global brand represented in 60 countries around the world with U.S. headquarters in Old Lyme, Conn. Sennheiser’s pioneering excellence in technology has rewarded the company with numerous awards and accolades including an Emmy, a Grammy, and the Scientific and Engineering Award of the Academy of Motion Picture Arts and Sciences. For more information, please visit

I currently use a Beats Audio wired and non-noise-cancelling headset and like it.  A Bluetooth-only headset would not be a great choice for air travel since you can’t use Bluetooth in the cabin, but could be useful if you spend time travelling by train and of course in your hotel room.

Sennheiser USA Website