Sennheiser HDB 630 Audiophile High-Resolution Closed-Back Noise Cancelling Wireless Headphones

Sennheiser's First Wireless 600 Series Headphone

The Sennheiser HDB 630 is the first wireless headphone in Sennheiser's legendary 600 series audiophile family, bringing genuine wired-headphone sound quality to a closed-back, noise-cancelling wireless design at long last.

A 60-hour battery keeps the HDB 630 running through several days of continuous use, while an included dongle upgrades your phone's ordinary Bluetooth connection to genuinely hi-res quality on the spot.

This is the same audiophile family that produced the HD 600, HD 650, and HD 660S2, now finally freed from a cable without giving up the sound quality those references are known for.

Where the 600 Series DNA Earns Its Keep

A Closed-Back Built for Audiophile Standards

Unlike every open-back headphone in the 600 series lineup, the HDB 630 seals against noise while actively cancelling what does get through, genuinely built for travel and shared spaces rather than a quiet home listening room.

Active noise cancellation works alongside the closed design rather than replacing it entirely, so isolation genuinely stays strong even before any electronic cancellation is actually switched on at all times.

A Dongle That Upgrades Your Phone's Bluetooth

The included dongle plugs into your phone or laptop and upgrades its ordinary Bluetooth connection to hi-res quality on the spot, without requiring any specific hi-res-capable device on your own end at all.

A 60-hour battery means charging becomes a weekly chore rather than a daily one, genuinely freeing you from cable management without sacrificing the wired-headphone sound quality this family is known for.

Who Is the HDB 630 Best For?

• You want 600 series sound quality without a cable: this is genuinely the first wireless headphone in that entire audiophile family
• You travel or commute regularly: the closed-back design with active noise cancellation is built specifically for exactly this use case
• You want hi-res audio from an ordinary phone: the included dongle upgrades standard Bluetooth without needing special hardware
• You hate charging headphones daily: a 60-hour battery turns that into a weekly task instead
• You want reference sound with genuine freedom — the HDB 630 goes wireless without giving up resolution

How Does It Connect to Your System?

Pair over Bluetooth directly from a phone, tablet, or laptop, or plug in the included dongle to upgrade an ordinary Bluetooth connection to genuinely hi-res quality instantly.

A 60-hour battery covers days of continuous use between charges, and active noise cancellation works alongside the sealed closed-back design for genuinely strong isolation throughout.

Pairs Well With

What finishes the system around an HDB 630:

• Music streamers — a streamer with a strong Bluetooth connection gets the most from this wireless link
• Digital-to-analog converters — feeds a clean signal into whatever source you pair the HDB 630 with
• Headphone cables — a USB-C cable keeps you charged and ready between listening sessions
• Headphone accessories — a case protects the housing and drivers while traveling

Frequently Asked Questions

How is this different from a typical Bluetooth headphone?

It shares genuine engineering DNA with Sennheiser's reference wired 600 series, aiming for that same sound quality wirelessly rather than the more typical convenience-first Bluetooth tuning.

How long does the battery last?

Up to 60 hours of continuous use per charge, meaning charging genuinely becomes a weekly task rather than a nightly ritual for most listeners.

What does the included dongle actually do?

It sits between your source and the HDB 630, handling the hi-res codec negotiation your phone's own Bluetooth radio typically can't manage on its own.

Can I use these for travel?

Yes, genuinely built for exactly that. The closed-back design with active noise cancellation is specifically suited to planes, trains, and noisy commutes.

How does this compare to the HD 660S2?

The HD 660S2 is wired and open-back, delivering the outright reference-level detail this family is known for. The HDB 630 trades some of that for genuine wireless freedom.

Where is the HDB 630 made?

Manufactured to the same standards as Sennheiser's entire high-end reference headphone lineup, ensuring consistent quality across every single unit produced.

See It in Action

Sennheiser presents Audiophile on-the-go with the HDB 630 | Sennheiser.

Sennheiser presents Meet the HDB 630: Cut the Cord, Keep the Clarity | Sennheiser.

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Learn More

Want to learn more about wireless headphones, Bluetooth codecs, or getting the most from a noise-cancelling design? Visit our Learning Center for guides, tips, and expert advice.