Sennheiser’s signature sound: Delivers exceptional, artist-intended sound fidelity, ensuring every detail and emotion is captured thanks to our TrueResponse transducer system that delivers a high-end sound experience with impactful bass, refined with an improved treble response. Complete control of your sound: Choose between multiple ways of customizing your sound: guided tests for personalized sound profiles, adaptive 5-band EQ, Sound Zones, Sound Check, or pre-set modes Future-proof technologies: Step into the future with Auracast support and LE Audio and enjoy the latest codecs with Bluetooth 5.4 compatibility. Lossless Audio: Guarantees bit-by-bit flawless transmission of audio, maintaining uncompromised sound quality during wireless listening. Adaptive Active Noise Cancellation (ANC): Automatically adjusts noise cancellation to surroundings, providing an immersive listening experience. Transparency Mode: Lets in outside sounds for awareness without removing earbuds, ensuring natural interactions with the environment thanks to low-noise mics. Long Battery Life: Up to 7.5 hours of playtime, extendable to 30 hours with the charging case, and quick charging for an hour of playtime in just 10 minutes.