Sennheiser HDB 630 Wireless Headphones

HDB 630 – Wireless audiophile sound in perfection

Experience music the way it should sound: crystal clear, rich in detail, and completely unadulterated. The Sennheiser HDB 630 combines state-of-the-art audio technology, wireless freedom, and outstanding comfort – for true listening pleasure, anywhere, anytime.

Audiophile sound quality:

Featuring Sennheiser-developed 42mm transducers and a precisely tuned acoustic design, the HDB 630 delivers neutral, vibrant sound with clear mids, impressive detail, and a wide, natural soundstage. Subtle digital signal processing ensures pristine reproduction of your favorite music.

Wireless or wired:

Thanks to Bluetooth® with aptX HD and aptX Adaptive, you can enjoy high-resolution sound without cables. Via USB-C or in combination with the BTD 700 Bluetooth® transmitter, you can experience music in lossless quality – up to 24-bit/96 kHz.

Individual sound adjustment:

The integrated parametric EQ allows precise adjustment of frequency bands and filters. Adjust bass, treble, or vocals to your liking – like a professional sound engineer.

Active Noise Cancellation & Transparency Mode:

Enjoy your music undisturbed: Adaptive ANC eliminates ambient noise without compromising sound quality. Transparency mode lets you stay aware of your surroundings at all times.

Long battery life:

With up to 60 hours of playtime, the HDB 630 will easily accompany you through long trips or busy work weeks. A quick charge of just 10 minutes gives you up to 7 hours of playback—perfect for on the go.

Harmonic acoustic structure:

Every part of the signal path—from the transducer to the acoustic mesh to the optimized rear volume—is tuned for perfect sound. The result: smooth mids, detailed highs, and an open, natural soundstage.

Comfort for hours of listening:

Lightweight construction, low contact pressure, and generous ear cups made of high-quality Japanese synthetic leather ensure maximum comfort – even during long listening sessions.

Technical data HDB 630

Generally

• Wearing style: Headband, stereo headphones
• Ear connection: Around-the-ear, circum-aural
• Weight: approx. 311 g (11 oz)
• Dimensions (folded): 180 x 195 x 51 mm (7 x 7.67 x 2 in)

Connectivity

• Bluetooth: 5.2 compliant, Class 1, 10 mW (max)
• Transmission frequency/modulation: 2.402 – 2.480 MHz; GFSK, p/4 DQPSK / 8 DPSK
• Supported profiles: A2DP, AVRCP, HFP
• Supported codecs: SBC, AAC, aptX™, aptX™ HD, aptX adaptive™

Speaker

• Principle: Dynamic
• Diameter: 42 mm
• Frequency range:
• USB: 6 Hz – 40 kHz
• Analogue & Bluetooth: 6Hz – 22kHz
• Sensitivity: 105 dB SPL (1 kHz / 0 dB FS)
• THD: <0.2% (1kHz / 100dB SPL)
• Impedance: Active 480 O

microphone

• Principle: MEMS
• Frequency range: 50 Hz – 10 kHz
• Pickup pattern: 2 microphones per side, beamforming for noise reduction
• Noise Cancellation
• Type: Hybrid Adaptive ANC
• Transparency mode: Yes

battery

• Type: Built-in lithium-ion (700 mAh)
• Running time: Up to 60 hours of music via Bluetooth & ANC

Loading time:

• Complete: approx. 2 hours
• Fast charging: 10 min for up to 7 hours of playback
• Operating voltage: 5 V?, 750 mA max, USB-C

Temperature range:

• Operation: 0°C – 40°C
• Charging: 10°C – 40°C
• Storage: -20°C – 60°C

Relative humidity:

• Operation: 10 – 80%
• Storage: 10 – 90%

Battery details

• Cells: 1 lithium-ion cell
• Capacity: 700 mAh
• Voltage: 3.7 V
• Energy: 2.7 Wh
• Dimensions: 36 x 48.5 x 4.7 mm
• Weight: 14.5 g
• Lithium content: 0.219 g