Superior sound – Sennheiser Superior Sound: Powered by Sennheiser’s TrueResponse transducer for high fidelity sound – Active Noise Cancellation & Transparent Hearing: Block out noise or gain awareness of external sounds at a touch in any environment – Built-in Equalizer and Bass Boost: Adjust the Equalizer and Bass Boost levels for a tailored sound and audio experience Designed for full day wearing – IPX4: Splash resistance for trouble-free use while travelling, commuting or exercising – Compact, Ergonomic Design: With 4 ear adapter sizes to ensure optimal comfort and a secure fit for anyone – Battery Life: Up to 8 hours and 24 hours of play back time with on the go charging via the case A smarter user experience – Customizable Touch Controls: Personalize touch controls for music, calls and voice assistant to match individual preference for intuitive operation – Independent Earbud Use: Convenient feature enables the left and right earbuds to be used individually or as a pair – Noise Reduced Microphones: Crystal-clear voice pickup by dual beamforming mics on each earbud to ensure speech optimized calls and voice assistant access (Siri and Google Assistant) – Smart Pause: The earbuds pause and resume playback automatically when taken out or replaced in the ear – Connections Management: Bluetooth connections can be easily managed via the Sennheiser Smart Control app