Unrivaled 50-Hour Battery Playtime - Enjoy exceptional battery life that lasts up to 50 hours on a single charge. Blocks out all distractions with ANC - Stay focused and immerse yourself in your music with effective hybrid active noise cancelling headphones. Your sound, your way - Customized your musical journey with a choice of sound modes, like Bass Boost and Podcast mode. Tailored-to-your-own preference with the built-in 5 Band equalizer. Sennheiser Sound - Discover high-quality Sennheiser audio, thanks to our own engineered and manufactured in-house transducer system. Hear external sounds with a touch - Transparency Mode enables you to stay aware of your surroundings without removing your headphones. All-day comfort – Crafted to deliver incredible comfort, the headphones feature a lightweight and ergonomic design, making them ideal for long music sessions.