Sennheiser MM 450-X Pro Reviews

Is the MM 450-X the Ferrari of noise-canceling headphones? It's certainly constructed well enough to outlast a couple generations of iPhone or other smartphone, and the Bluetooth implementation is deep, providing a huge number of control commands while maintaining simple access to the most common ones. I also found the overall audio quality, both wired and over Bluetooth, to be very good, with accurate soundstaging, crisp reproduction of instruments and vocals, and tight bass. Where the MM 450-X falls short is in its performance as a headset and in its audio performance with noise-canceling circuitry enabled. While one could argue that you can't expect stellar audio from any noise-canceling headphone, the Sennheiser brand and the MM 450-X's price set certain performance expectations. What's disappointing here is that, to use my car analogy, while Ferrari doesn't make its own navigation system, Sennheiser has long made noise-cancelation systems. Though the MM 450-X is good, it's difficult to give an unqualified recommendation for a £299 noise-canceling, Bluetooth headset that doesn't have best-in-class noise canceling performance and functions poorly as a Bluetooth headset.

The versatile-but-not-flawless Sennheiser MM 450-X is a Bluetooth headphone set that also has active noise cancellation and the ability to be used as a wired pair.