Overview

• Pre-orders are open at $499.95 in the US and £399.90 in the UK, with shipments scheduled to begin on October 21, 2025.
• The headset supports up to 24‑bit/96kHz audio via USB‑C or 3.5mm, alongside Bluetooth 5.2 with Qualcomm’s aptX Adaptive for wireless listening.
• Sennheiser bundles a USB‑C dongle to enable high‑res wireless on devices without native support, addressing limited smartphone compatibility cited at roughly 16 percent.
• The design reuses the Momentum 4 chassis but adds a customized acoustic system featuring 42mm dynamic transducers made in Tullamore, Ireland.
• DSP tools include Crossfeed inspired by the HE 1 and a Parametric EQ with adjustable Q and A/B comparison, with preset sharing in the app now and QR-code sharing planned in a future update, plus up to 60 hours of ANC battery life with a 10‑minute charge yielding about seven hours and travel accessories such as an airline adapter.