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