A dramatic update and upgrade over the previous generation, the MOMENTUM 4 Noise-Canceling Wireless Over-Ear Headphones from Sennheiser trades in the classic design and folding body for a sleeker, more modern look and fold-flat earcups. More importantly, the battery life has drastically improved by nearly four times to up to 60 hours with both Bluetooth and adaptive noise cancellation on. Audio quality is still on the high end with Sennheiser's Signature Sound powered by large 42mm drivers. Sound can easily be customized to your individual hearing with the Sennheiser Smart Control app. Add in clear calls from four beamforming mics with wind noise suppression, and you have a pair of headphones that can be used throughout your entire day. Highlights Sennheiser Signature Sound Powered by Sennheiser’s audiophile-inspired 42mm transducer system for exceptional high-fidelity wireless sound Customizable Sound Listen your way with built-in EQ, presets, sound modes, and Sound Personalization feature, which tailors the audio to your individual hearing – all accessible via the Sennheiser Smart Control App Adaptive Noise Cancellation and Transparency Mode Advanced noise cancellation automatically adapts your sound to your surroundings. Transparency Mode lets you hear external sounds without removing your headphones Crystal-clear Calls Four digital beamforming microphones ensure voice pick-up and automatic wind noise suppression for improved calls and easier voice assistant access Bluetooth Codec Support Support for SBC, AAC, and aptX Adaptive ensures the highest quality option is automatically selected for your device Customizable Sound Listen your way with built-in EQ, presets, sound modes, and Sound Personalization feature, which tailors the audio to your individual hearing – all accessible via the Sennheiser Smart Control App Sennheiser's Signature Sound Discover best-in-class sound with our audiophile-inspired accoustic system. Superior Sound Enjoy your favorite music like never before with our audiophile-inspired 42mm transducer system that delivers brilliant dynamics, clarity and musicality. Your way Make the sound perfect for you using the built-in EQ, presets, sound modes, and Sound Personalization feature, which tailors the audio to your individual hearing. New Adaptive Noise Cancellation and Transparancy Mode Go from total immersion to situational awareness with just a touch. Full immersion Our next generation Adaptive Noise Cancellation automatically adapts to ambient noise so you can stay immersed and hear every detail, even in noisy environments. Situational awareness Need to hear an announcement on the train or a question from your colleague? Just activate the versatile Transparency Mode at a touch to hear outside sounds without removing your headphones. Premium look & feel Enjoy exceptional comfort and streamlined style. Premium comfort The M4’s lightweight design features a padded headband and deep, yet soft, cushioned earpads to ensure exceptional and long-lasting wearing comfort. Perfect fit Meanwhile, the low-friction hinge mechanism easily adjusts to give you a great fit without placing excess pressure on your head. Smart & easy Let nothing stand in the way of your listening pleasure. Up to 60-hour battery life Keep on listening while you fly around the globe, with up to 60-hour battery life and fast charging capability that provides a further 6 hours listening in just 10 minutes. Never miss a beat Smart Pause halts playback when the headphones are taken off and automatically resumes when they’re back on your ears so you’ll never miss a beat, while Auto On/Off rapidly powers up the headset when it’s picked up and shuts down to save energy when not in use. What's In The Box? Sennheiser MOMENTUM 4 Wireless headphones with Active Noise Cancellation Carry case USB-C charging and audio cable Audio cable with 3.5mm (audio source) and 2.5mm (Momentum 4 headphone) jacks Airplane adapter 2-year warranty