Noise-canceling technology gives you peace and quiet
Sennheiser's NoiseGard 2.0 technology reduces extraneous sounds by up to 90%, such as engine roar, wind noise, and the conversation of surrounding passengers. Tiny microphones in the headphones pick up the sounds of your environment. Advanced circuitry then creates a signal that "cancels out" much of this external noise without affecting your music or phone calls. A handy "TalkThrough" function lets you temporarily override the noise-canceling circuit with the push of a button to carry on a conversation with a seatmate.
Exceptional comfort, sound quality, and convenience
The MM 450's soft earcups feature plush leatherette cushions that feel great. An adjustable padded headband ensures comfortable listening for hours on end, making these 'phones ideal for long trips. Plus, they fold up into a compact package to fit inside the included carry pouch for easy transport. Sennheiser's patented Duofol diaphragms deliver detailed, crystal clear sound. And just in case you need it, Sennheiser includes a cable plus an airline adapter for a direct wired connection in situations where Bluetooth is not permitted, or you want to make use of in-seat entertainment and other wired sound sources.
From the review the Sennheiser MM 450 Noise-canceling Bluetooth® wireless headset: Great sound in the air and on the ground
"I was truly impressed by the sonic spectrum that the headset could reproduce without a wire in sight. A surprising amount of bass thumped through the on-the-ear-style ear cups, and the highs were well-defined and balanced. I called my wife... and her voice came through loud and clear through both ear cups. And while I'm not exactly sure where the microphone is on 450, it picked up my voice well, and she could hear me just fine on her end, too."
Jon, Crutchfield Video Editor