🎒 Travel-Ready – Fold-flat design with protective carrying case
Description
🎧 Sennheiser HDB 630 Audiophile-Grade Wireless Headphones with Active Noise Cancellation
Experience high-fidelity sound without limits. The Sennheiser HDB 630 redefines wireless listening by combining studio-grade accuracy, adaptive noise cancellation, and luxurious comfort — all in one closed-back design. Paired with the BTD 700 Bluetooth® USB-C Dongle, it delivers true Hi-Res wireless sound with aptX™ Adaptive and aptX™ HD support across a wide range of devices.
🔊 Pure Audiophile Sound — Anywhere
Engineered for critical listeners, the HDB 630 features an in-house 42 mm transducer that delivers lifelike mids, rich detail, and a natural soundstage. The neutral tuning offers balanced bass, articulate vocals, and smooth treble for hours of fatigue-free listening.
⚙️ Hi-Res Wireless with the BTD 700 Dongle
The included BTD 700 Bluetooth® USB-C Dongle unlocks high-resolution wireless playback on phones, laptops, and tablets. With aptX™ Adaptive and aptX™ HD, you’ll experience pristine detail, improved dynamics, and a wider soundstage — no matter what device you’re using.
🎚️ Advanced Sound Control
Customize your listening with precision using the Smart Control Plus App.
Parametric Equalizer: Fine-tune frequencies to your taste for truly personalized audio.
Crossfeed Feature: Brings natural stereo balance to classic hard-panned mixes.
Transparency Mode: Stay aware of your surroundings when you need to.
Every element is engineered to keep your music pure and distortion-free — whether through Bluetooth, USB-C, or the included 3.5 mm analog cable.
🔇 Adaptive Noise Cancellation
Block out distractions without compromising audio fidelity. Sennheiser’s Adaptive ANC preserves clarity and balance, ensuring a natural, distortion-free experience even in noisy environments. Switch to Transparency Mode to blend in external sounds when required.
🔋 Battery Life & Comfort That Go the Distance
With an impressive 60-hour battery life, the HDB 630 is built for long-haul listening. Plush leatherette earpads, a lightweight 311 g design, and a refined Japanese leatherette headband ensure all-day comfort. Whether you’re traveling, working, or unwinding, these headphones deliver luxury and endurance in equal measure.
🧠 Why the HDB 630 Stands Out
Neutral, balanced audiophile tuning with a wide soundstage
aptX™ Adaptive & aptX™ HD for true Hi-Res wireless playback
BTD 700 Bluetooth® Dongle for high-fidelity across devices
USB-C or analog input for lossless wired listening (up to 24-bit / 96 kHz)
Smart Control Plus App for full sound customization
Up to 60 hours battery life with adaptive ANC
Premium materials for long-term comfort
The HDB 630 brings audiophile-grade performance to the modern wireless world — uncompromising sound, elegant design, and intelligent control in one masterpiece.
1.2 m USB-C to USB-C cable (for audio and charging)
1.2 m analog audio cable with 3.5 mm plug
In-flight adapter
Premium carrying case
Quick start guide and documentation
Warranty Period: 2 Year from the date of Invoice
Covered: Manufacturing Defects Only
Website: https://en-in.sennheiser.com/service-support-contact-service-centers-in-india
Contact No: 1800 22 36 32
Email Id: in-info@sennheiser.com
Sennheiser is a well-known brand in the audio industry. They offer a wide range of products catering to both audiophiles and casual listeners. Their products include open back and closed back audiophile headphones, in-ear monitors, ANC headphones, and true wireless earbuds. They are known for their exceptional sound quality and durability. Whether you're a professional musician or just a music enthusiast, Sennheiser has something for everyone.
Honestly I was never a fan of Senheiser earphones/ headphones with their base heavy sounds. I have a focal bathes and bw p7s2 . I had no requirements for a wireless headphone. My guide Mr Pritam asked me to go for hdb 630, blindly. So happy for the decision. This one from Senheiser house is unique. Closed back yet big sound stage. Very balanced sound, true to every kind of music. Technically top notch. I love it. If someone is contemplating to buy a best sounding headphones under 50K, I can't think of anything. It's even way ahead of many Wired ones in that price range
S
Sajid Assad (Pune)
The hype is real..
The hype is real with HDB 630, this is a great bet if anyone prioritize audiophile sound quality, clarity, comfort along with flexibility of going wireless — especially if one care about fidelity and critical listening at home or on the go, however if anyone wants thumping bass or top-tier noise-cancelling, then might find it a bit restrained.
But there comes its industry first 5 band PEQ in a bluetooth headphone, Sennheiser has basically given us a blank canvas to customize its FR to anyones taste, its 5 band but its enough to make the sound curve the way we like.
The new app has a lots of customization options, and a bluetooth dongle in the box to get aptx adaptive specially for iPhone users.
Out of the box its tuning is close to perfect but just use the PEQ and make it sound however we want.
Its a much improvement over Momentum 4 and also much better value than Focal Bathys IMO since having used both.
Special thanks to Theaudio store for their super fast delivery service as usual, timely update and trusted name for buying any audiophile products..
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OUR HONEST REVIEWS FROM THE CO-FOUNDERS & AUDIOPHILES
Why?
The quality of music that it is deliveing is Awesome . I was not sure if it is worth investing before buying. But after I tested it , it was phenomenal .
Also I would like to thank The Audio Store , they packaged this box so nicely , it has 4 to 5 level of protection, Also I was not expecting the case , it is cherry on the cake, I was bored of that low quality cases.
Thank You The Audio Store
You're the best
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Swamyvaitla
To day it was delivered today me two days in
To day it was delivered to me two days in advance to expected delivery. I fixed it to my 4.4mm balanced male of my FiiO FT 7 headphones It's performance is extraordinary. Thank you Ear Audio store for supplying good quality adopter. It's built quality is also very beautiful.
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Tauheed
Awesome product
Awesome product 😎
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Rajesh Srikar
AZLA SednaEarfit Crystal 2 Eartips - S size
Great tips
Very comfortable with a good seal. No more worry about wax entering the vents. Quality is excellent
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03/02/2026
Naveen
What to say about this Hybrid versatile , (Desktop DAC/Portable BT Receiver DAC, supporting lates...
I was wondering, whether to buys Fosi Audio ZD3 for my MC351 Amp/ FiiO BTR-15 for my Sennheiser IE200, hmm have to purchase two devices, still no Bluetooth receiver with LDAC/Apt-x lossless).. Here I got this as a hybrid. 1. Works as desktop DAC connected with PC or Bluetooth Receiver for home/on-the go during travelling, small, cute and compact, here is the deal breaker.. I found to replace all three devices (1. ZD3, 2. Fiio BTR-15 3. Fiio BR-13) all in once small DAC... so why not to purchase my dear audiophiles, testing is in progress, volume feels little low, still using 3.5 mm, not had chance to check 4.4 mm female port yet, where it shows true colors, waiting for 4.4 mm cable for my IEM.. will update my review soon.. Boom Boom: How to unlock volume from 15 to 30 Steps to Maximize Volume & Clarity.
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To fix the low volume while maintaining the high audio detail of the dual CS43198 DACs, follow these steps:
Unlock the Volume:
On the HiBy W4 screen, go to Settings > About.
Tap the firmware version number (e.g., "HiBy W4 1.00") 5 times rapidly to enable Developer Options.
Go to the new Developer Options menu and turn Volume Lock to "OFF". This allows the volume to reach its true maximum (30/30).
Set to High Gain: Enter the Audio Settings menu on the W4 and change the Gain setting to High. This increases the output voltage, providing a stronger signal for the MC351's RCA inputs.
Manual Line Out: Since there is no fixed Line Out, manually set the HiBy W4 volume to 27 or 28 out of 30. This mimics a standard 2V line-level signal without introducing digital clipping. Enjoy.. :D
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Gud
Gud
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02/28/2026
Kousik Pal
Best iem purchase under 2k
This iem was recommended to me by youtuber Rohitagni Mukherjee and indeed it was a good recommendation.
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Aish
Impressive V-Shaped Tuning at This Price
The KZ EDX Pro offers a clean V-shaped sound signature with punchy sub-bass and energetic treble. Bass has good extension without muddying the mids, and vocals remain clear though slightly recessed. Treble adds sparkle but can get mildly sharp on bright tracks.
Instrument separation and soundstage are impressive for a single dynamic driver at this price point. Solid build, detachable cable, and comfortable fit make it a great entry-level IEM for detailed listening on a budget.
The included EarAudio carry case is compact and sturdy, offering decent protection for daily use. The zipper feels smooth, and it easily fits the IEMs without forcing the cable. A practical addition that helps with portability and storage.
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Vaibhav Ghanekar
Game-Changer DAC for Budget Audiophiles – AUDIOCULAR SPARK CX31993 + MAX Amp Review 🎧✨
I got the AUDIOCULAR SPARK Hi-Res Portable DAC Dongle (CX31993 + MAX Amp), and it’s totally worth every rupee 💸. At first, I thought using a DAC was unnecessary since my phone already has a headphone jack, but I was wrong 🤔. The moment I plugged it in, the sound quality jumped by at least 50%—louder, clearer, with way more detail in background instruments and vocals 🎶. It’s a one-time investment that seriously upgrades your listening experience, especially with budget IEMs like my KZ Caster Pro 🎧. If you’re into good sound and have the budget, get it—you won’t regret it. Better than expected. Thanks, me later 😎👍.
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Tanay
Love the iems
Love the iems, they are my first iems and my god these things beat everything I've ever used.
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J.S.
Bang for Bucks ?
Does feel a little more on a heavier side, or maybe I'm not getting a hang of em just yet. As for this price it does not disappoint, for the sound quality ethics its 3.7/5. You guys Can go for Vader Pro series not sure if you appreciate +1/2 score(4.2/5), they does sound better.
Jus a little guide for you all if you're considering KZ under 3k range, Castor pro < Duonic Enhanced < Vader 3 pro Enhanced.
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SOLID !!!
Didn't thought I would be this spacious, Zip feels sturdy let the time tell. Would recommend as to now.
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Ji Jo
3x fun for a basshead
Here is an IEM which bifercates sound distinctively in all 3 levels - the Highs, Mids and Lows that produces such a crisp and clear representation of your favourite music. Even if V signature is not your thing this will change that. People who prefer HM reference would want to switch after giving these a try. Top it up with EARgonomic metal shells that KZ is known for creates a perfect seal even with stock eartips. So, if you own a Castor Pro, Zsn Pro 2 or Trio and love them then this totally upper tier.
Audiostore did a good job in delivering these, BEFORE TIME.
So, yeah loved the overall experience.
Tnx
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All-Round Excellence.
The most comfortable IEMs I have ever used. Resolution, soundstage, and instrument separation — all in one package — make it a one-of-a-kind experience. Such a great all-rounder. If you’re considering buying these, don’t think twice — you won’t regret it. Heartfelt thanks to Mr. Pritam for supporting and endorsing the decision.
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