Experience exceptional sound with Sennheiser earbuds powered by German-made 7mm TrueResponse transducers and versatile Bluetooth codec support. Enjoy up to 27 hours of music playtime with the included case, benefit from passive noise cancellation, and personalize earbud functions with the Smart Control App. Enhance your audio with a Bass Boost option, all while enjoying Sennheiser's decades of audio expertise and IPX4 splash resistance.