Seamless Firmware & App Updates: Enjoy a smoother, more reliable experience with the firmware and Smart Control Plus app features for your wireless headphones over ear, including ANC toggle and touchpad off switch for premium music quality Audiophile-Inspired Sound: Sennheiser wireless headset with Signature Sound, 42mm transducers, aptX Adaptive deliver crystal-clear audio plus deep, immersive music for music lovers and travelers Personalized Listening Experience: Tailor your sound on the Sennheiser headphones via the Smart Control Plus app with integrated equalizer, presets, and sound modes for a unique custom audio profile, whether used for music, podcasts, or gaming Adaptive Noise Cancellation & Transparency Mode: Block distractions or stay aware of your surroundings with these noise cancelling headphones wireless Bluetooth for uninterrupted music enjoyment anywhere, for commuters, students, and professionals Comfort & Long Battery Life: These Sennheiser noise cancelling over ear headphones wireless are lightweight, foldable—designed with a cushioned headband and ear pads; enjoy up to 60 hours of long-lasting comfort playback with fast charging Next Generation: MOMENTUM 5 out now!