Sennheiser HDB 630 Wireless Headphones

Enjoy high-resolution, neutral sound — anywhere
Meet the Sennheiser HDB 630 Wireless Headphones — a closed-back, over-ear design that delivers true audiophile performance with the freedom of wireless listening. Featuring Sennheiser’s in-house 42 mm transducer, advanced adaptive noise cancellation, and the included BTD 700 Bluetooth® USB-C Dongle, the HDB 630 brings reference-grade sound to your phone, tablet, or laptop. Enjoy up to 60 hours of battery life and studio-level control through the Smart Control Plus App’s parametric EQ and crossfeed tools.
Key Features

Neutral, high-resolution tuning — 42 mm Sennheiser transducer delivers lifelike mids, precise detail, and an expansive soundstage.

BTD 700 Dongle included — unlocks aptX™ HD and aptX™ Adaptive high-res Bluetooth for phones, tablets, and computers.

Parametric EQ & Crossfeed — shape your sound and recreate speaker-like imaging using the Smart Control Plus App.

Adaptive Noise Cancellation — powerful yet transparent, maintaining dynamics and tonal balance.

Multi-connection options — USB-C, analog 3.5 mm, or Bluetooth 5.2 for lossless and wireless flexibility.

All-day comfort — 311 g lightweight frame, plush leatherette pads, and up to 60 hours per charge.

Designed for true portable fidelity
Serious listening no longer requires racks of gear. The HDB 630 redefines portable audiophile sound with the same composure and neutrality enthusiasts expect from Sennheiser’s wired models. Pair the BTD 700 Dongle for instant hi-res performance across platforms and enjoy a complete acoustic chain engineered for balance, clarity, and realism — whether you’re at home, in the office, or on a flight.
Precision control with advanced DSP
Using the Smart Control Plus App, the HDB 630 gives you full parametric equalization and crossfeed control. Fine-tune frequency ranges, bandwidth, and filter types for exact tonal shaping — from subtle vocal refinement to bass extension. Crossfeed brings a natural stereo image to older recordings while preserving phase integrity, making these headphones uniquely capable for both critical and casual listening.
Comfort and endurance for every journey
A refined Japanese-leatherette headband, generous earpads, and low clamping force make long sessions effortless. With 60 hours of playback and rapid USB-C charging, the HDB 630 is built for marathon playlists, travel days, and studio-length editing sessions.
The HDB 630’s tuning emphasizes fast, controlled bass, lifelike mids, and smooth treble that retains air without fatigue. Compared to the Momentum 4, it’s a more reference-oriented sound — less coloration, more precision, and a wider, more natural stage.
Technical Specifications

Specification
Details

What’s in the Box

HDB 630 closed-back wireless headphones
1.20 m USB-C to USB-C audio / charging cable
1.20 m audio cable with 3.5 mm plug
In-flight adapter
Carrying case

Compare to Similar Models

Model
Design
Price (USD)

Sennheiser HDB 630
Closed-back Wireless Over-Ear
aptX Adaptive / HD / AAC / SBC
Up to 60 hours
Neutral Reference Tuning
$499 (estimated)

Sennheiser Momentum 4
Closed-back Wireless Over-Ear
aptX Adaptive / AAC / SBC
Up to 60 hours
Warm Balanced
$379

Bowers & Wilkins Px7 S2e
Closed-back Wireless Over-Ear
aptX Adaptive / AAC / SBC
Up to 30 hours
Warm Dynamic
$399

Sony WH-1000XM5
Closed-back Wireless Over-Ear
LDAC / AAC / SBC
Up to 30 hours
Smooth V-Shaped
$399