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