Sennheisers Momentum range continues to redefine the standard for sophisticated listening through superior sound. The new Momentum 4 Wireless raises the bar higher, with Sennheisers signature sound, advanced adaptive noise cancellation and exceptional comfort. With smart, intuitive features that enhance every interaction and up to 60-hours of battery life, there is nothing between you and an incredible listening experience. Why settle for less? Sennheiser Signature Sound - Powered by Sennheiser's audiophile-inspired 42mm transducer system for exceptional high-fidelity sound. Top-Tier Battery Life - Outstanding battery life with up to 60-hours play back time with fast charging. 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.Premium Comfort - Lightweight design features a padded headband and deep cushioned earpads to ensure exceptional and long-lasting wearing comfort. Customisable 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. Crystal-clear Calls - Four digital beamforming microphones ensure high quality voice pick-up and automatic wind noise suppression for optimized calls and easier voice assistant access (Siri and Google Assistant).Bluetooth enabled for a wireless connection to your devicesConnects to devices via Bluetooth 5.03.5mm jack42mm driver & Touch on side controlsFeaturing gesture controlAdjustable headband, Active noise cancellation, Bass control, Compatible with universal smartphonesBatteries required 1 x Li-Ion battery (included), Rechargeable battery, 60 hour battery life, 120 minute charging timeFast charge to boost battery lifeIn the box: headphone, carry case, USB-C charging cable, audio cable 3.5mm & 2.5mm jacks airplane adapter, Maximum audio resolution with Sennheiser Signature Sound Enjoy premium music quality all-day long thanks to the headphone's audiophile-inspired 42mm transducer system and aptX Adaptive. Note Recommendation is that the user downloads the Sennheiser Smart Control app, this ensures that the product is up to date with updates Personalized sound via the Sennheiser Smart Control App Adjust the sound to your individual listening preferences via the integrated equalizer, presets and sound modes - for a unique sound experience Stay immersed in your music Thanks to the headphone's Adaptive Noise Cancellation, you stay distraction-free - and with the Adjustable Transparency Mode you stay in touch with the world around you Exceptional comfort and long battery life Lightweight, foldable design with padded headband and deeply cushioned ear pads for long-lasting comfort - up to 60 hours of playback time with fast charging Crystal-clear calls The four digital beamforming microphones ensure high-quality voice pick-up and automatically suppress wind noise for optimized calls and easier access to the voice assistant.