The Sennheiser Momentum 4 Wireless headphones deliver exceptional high-fidelity sound through Sennheiser’s proprietary 42mm Dynamic Drivers, producing rich bass, clear mids, and crisp highs across a wide frequency range of 6 Hz to 22 kHz. With an outstanding battery life lasting up to 60 hours on a full charge and quick-charge capabilities offering 4 hours playback with just 5 minutes of charging, these headphones are perfect for all-day use. Advanced hybrid adaptive noise cancellation dynamically adjusts to ambient sounds, complemented by a Transparency Mode that lets external sounds in when needed. Designed for comfort, they feature breathable, padded ear cups and an adjustable headband for extended wear. The Sennheiser Smart Control app offers customizable sound tuning with presets, EQ, personalized sound profiles and sound modes. This allows users to tailor audio and ANC settings based on environment and their own preference. Crystal-clear calls are also supported by four digital beamforming microphones with automatic wind noise suppression, enhancing voice pick-up and voice assistant access seamlessly.