Sennheiser momentum 4 wireless headphones deliver an effortlessly smart user experience wherever you go. With its outstanding sound quality and its all-new design that perfectly combines exceptional comfort and streamlined style, nothing can get in the way of your listening pleasure. enjoy great music quality all-day long thanks to sennheiser signature sound, enabled by the headphones' audiophile-inspired 42mm transducer system and aptx adaptive. Access the sennheiser smart control app and customize the sound to your individual listening preferences with the built-in eq, presets, sound modes and sound personalization feature. the headset's adaptive noise cancellation ensures you won't be distracted when you want to immerse yourself in your music, and the versatile transparency mode lets you hear your surroundings without removing the headphones. But that's not all. Four noise-canceling microphones provide high-quality voice pick-up and automatic wind suppression for optimized calls and easier access to voice assistants (siri and google assistant). momentum 4 wireless is compatible with bluetooth 5.2 and ensures a reliable connection with any device. Its outstanding battery life lets you enjoy up to 60 hours of playback time on a quick charge. The intuitive touch interface on the right ear cup provides effortless operation and easy control of music, calls, anc and voice assistants. It also offers smart features like smart pause and auto on/off that anticipate your needs when needed. Smart pause automatically pauses and resumes playback when the headset is removed or replaced. Auto on/off turns on when you pick up the headset and turns off automatically after 15 minutes of non-use. the lightweight design, the padded headband and the deeply padded ear cushions provide exceptional and long-lasting comfort. Premium fabric details highlight the discreet design to complement your style, and the ultra-slim hard case with soft fabric cover makes it easy to carry on the go.