Powered by a 42mm audiophile-inspired transducer system, the Sennheiser MOMENTUM 4 Bluetooth Headphones allow you to revel in a musical journey that boasts brilliant dynamics, clarity, and an impressive sense of musicality. Personalised Acoustics Featuring built-in EQ, presets, sound modes, and the innovative sound personalisation feature, these over-ear headphones allow you to tailor your music preferences. Adaptive Noise Cancellation The next-generation Adaptive Noise Cancellation feature adapts dynamically to ambient noise, ensuring that you remain immersed in your music, even in bustling environments where every intricate detail matters. Transparency Mode You can activate the versatile transparency mode with a touch, allowing ambient sounds to filter through without the need to remove your headphones. This way, you can navigate between your world and your music seamlessly.