Momentum 4 Wireless Headset Get the next-generation MOMENTUM 4 Wireless, inspired by music. Superior sound quality Enjoy your favorite music like never before with our audiophile-inspired 42 mm transducer system that delivers exceptional dynamics, clarity and musicality. Your way Shape your perfect sound with the built-in equalizer, presets, sound modes and sound customization function, which adapts the audio signal to your own hearing. Total immersion Our next-generation adaptive noise reduction system automatically adapts to ambient noise, so you can stay immersed in your sound and hear every detail, even in noisy environments. Awareness of your environment Need to hear an announcement on the train or a question from your colleague? Simply activate the versatile Transparency mode at the touch of a button to hear outside sounds without having to remove your headset. Premium comfort The M4's lightweight design features a padded headband and thick, soft ear cushions to ensure exceptional, long-lasting wearing comfort. Perfect fit The low-friction hinge mechanism adjusts easily to give you a perfect fit without exerting excessive pressure on your head. Up to 60 hours of battery life Don't interrupt your listening when you're traveling around the world, thanks to a battery offering up to 60 hours of autonomy and a fast-charging capability that extends your listening time by 6 hours after just 10 minutes of charging. Never miss a note again The intelligent pause function pauses playback when you remove the headset and resumes it automatically when it's put back on your ears, so you never miss a note, while the Auto On/Off function quickly turns the headset on when it's picked up and off to save energy when it's not in use.