PriceThe HDB 630 will be available at a special pre-booking price of Rs 44,990, and early buyers will receive Accentum Open earbuds worth Rs 12,990 as part of a bundled offer. The pre-booking window runs from November 28 to December 4. AvailabilityThe headphones will be available starting November 28 through Sennheiser’s official website, Amazon India, Headphone Zone, Audio Store, Concept Kart and select offline premium retailers. The company is positioning the HDB 630 for users who rely on high-resolution streaming services, editing workflows or long listening sessions. FeaturesThe HDB 630 uses a newly developed transducer system with an updated magnet mesh and optimized back-volume design to deliver a natural and detailed soundstage. The tuning emphasizes balance, clarity and refinement across the frequency range, aiming to stay close to the original recording. Despite being a closed-back model, the headphone is designed to maintain a wide and open presentation.The device supports 24-bit/96 kHz playback through both USB-C and Bluetooth. When paired with the BTD 700 Hi-Res Bluetooth dongle, support for hi-resolution audio devices expands significantly, enabling more users to access lossless-grade audio wirelessly. Sennheiser is introducing a Parametric Equalizer in a wireless headphone for the first time, allowing precise control over frequencies for users who want tailored sound. The Crossfeed setting adds a more speaker-like presentation for recordings with hard-panned elements.The headphones are built on the Momentum 4 frame, using lightweight materials, refined clamping force and Ideatex protein-leatherette for comfort. A 60-hour battery life and a 10-minute quick charge offering seven hours of playback add to portability. Replaceable pads, a two-year warranty and durability testing underline the company’s focus on longevity.