Astell&Kern - AK UW100MKII
Hi-Res True Wireless EarbudsUnfortunately, even if we desire to, we won't be able to resurrect this product. The Museum is where we pay our respects to end-of-life, old, archived, but not forgotten products. This page was made with a lot of love and will live on for posterity. What to say, we're sentimental people. 😔
While this product is gone forever, here are others we recommend
Customer Reviews
The detail and ultimate fidelity of the playback is one of the best I’ve ever heard from a True Wireless earphone. AK mobile app allows for adjustments to the frequency curve.
The touch interfaces is a bit…touchy.
Thank you for sharing your experience! We're thrilled you're enjoying the incredible detail and fidelity. Noted on the touch controls, hopefully future updates smooth that out!
This is probably my 1st 5 star rating. The product deserves it. Love the sound staging. Perfectly tuned and doesn't hurt ears during long listening sessions.
Thank you so much! Glad you're loving the sound and comfort! 🙌
If need bass this will not suit you
The sound is clean and crisp. Not for people who are into bass.
The proximity sensor will pause your audio if the TWS comes slightly out of your ear.
Rest all seems perfect till now. Thanks, Headphone Zone.
Thank you for your feedback! We're glad to hear that you're enjoying the clean and crisp sound of the Astell&Kern AK UW100MKII. Happy listening!
Build quality of these case and ear buds very sturdy.The sound quality is like90s 2000s tape cassette DAC.or And it can be said that the CD player.Sound stage is very impressive 👌
Thanks for your review!
Just don't think & go for this Astell&Kern - AK UW100MKII. Seat and enjoy lossless. Only concern is Size, it may not be super fit for every body.
Thank you for leaving such a positive review!
Astell&Kern - AK UW100MKII
Thank you for your awesome rating!
I am very happy with the purchase. Received 1day before the expected delivery date. I am very impressed with the quality of sound from these TWS. Definately it's a steal at 5k rupees.
Thank you for your awesome rating!
Why Astell&Kern is Special
Made in Korea
Established & Reputed
Trust us, our reputation speaks for itself 🏆!
I believe that when a brand has decades of proven excellence, you can invest with confidence knowing your purchase is backed by years of audio engineering expertise. These products come from manufacturers with extensive histories of innovation and unwavering commitment to sonic excellence. Think of them like luxury watch brands - their reputation has been earned through decades of consistent quality and innovation.
With their extensive history of innovation and countless satisfied customers worldwide, you can be confident your investment is backed by proven audio engineering expertise and industry leadership 📈.
When you see "🎖️ Established & Reputed" products, expect time-tested excellence from manufacturers who've consistently demonstrated mastery in audio engineering for generations.
Revered by Audiophiles
Audiophiles can be really picky 😤, and if the audiophile community says something sounds good, you can bet it's exceptional! I believe that earning audiophile reverence is like getting a standing ovation from music critics - it doesn't happen unless you've truly achieved something special. This audio gear has earned widespread acclaim from audiophiles worldwide, a community renowned for exacting standards and unwavering commitment to high-fidelity reproduction.
These discerning enthusiasts particularly value its extraordinary precision in sound reproduction and remarkable capability to create thoroughly immersive listening experiences. The audiophile community's endorsement carries significant weight because of their extensive experience with high-end equipment 🏆.
When you see "🙌🏻 Revered by Audiophiles" products, expect audiophile-grade excellence that satisfies even the most demanding listeners and consistently exceeds the highest standards.
Born in 2004
Why we love this TWS
Value for Money
I've found that the best gear isn’t always the most expensive. Some products punch well above their weight and deliver performance that rivals higher-priced alternatives. That’s what we mean with the "Value for Money" badge. It’s our way of telling you that you’re getting something special without breaking the bank. 🥜
These products are all about maximum returns for minimal investment. You’re not just saving money — you’re gaining an audio experience that exceeds expectations. Whether it’s build quality, tuning, or bundled accessories, these picks overdeliver.
When you see '🥜 Value for Money' products, expect impressive performance at an affordable price, making them a smart pick for budget-conscious buyers or first-time audiophiles.
Ideal for Beginners
Lost in the vast world of audio equipment?
Don't worry, we're here to guide you 🤝! I believe that everyone's audiophile journey should start with something approachable and welcoming. These carefully selected products serve as the perfect entry point into high-quality sound, specifically chosen to help you navigate through sometimes overwhelming technical options. Think of them as your friendly neighbourhood guide who knows exactly where to start without getting lost in complex specifications.
These products strike an ideal balance between quality and accessibility, featuring user-friendly designs and straightforward functionality. They're specifically selected as the perfect starting point for your audiophile journey, offering serious performance without intimidating complexity or premium pricing that might discourage exploration.
When you encounter "🌱 Ideal for Beginners" products, expect approachable excellence - these are your stepping stones into the world of premium audio, designed to grow with your developing appreciation for great sound.
Use Wirelessly with Bluetooth
I tend to describe Bluetooth audio as wireless freedom with fewer strings attached — literally. When you see Use Wirelessly with Bluetooth, it means you can pair your headphones or IEMs with phones, laptops, or even TVs — all without reaching for a cable 🎶. It’s convenient, clutter-free, and great for everyday listening.
What’s happening behind the scenes is your gear is using Bluetooth codecs like SBC, AAC, LDAC, or aptX to compress and transmit your music wirelessly. Better codecs mean higher quality and lower latency. Of course, there’s a trade-off — Bluetooth won’t match the quality of wired gear, but today’s advancements have made the gap much smaller than before.
When you see '✂️ Use Wirelessly with Bluetooth' products, expect: tangle-free convenience and solid sound quality — great for commuting, workouts, or casual listening.
Battery Life
In my experience, battery life is one of those things that separates a good day from a frustrating one. It's like having a fuel gauge you can rely on — longer battery life means less charging and more uninterrupted music. Whether you're on a flight or just commuting across town, this is one spec you don’t want to overlook 🔋.
Technically, battery life refers to the hours your device can play music on a single charge. Today’s headphones and DACs can range from 4 to 40+ hours, depending on things like Bluetooth codec, volume, and active features like ANC. More battery life also means better travel and portability, though it might come at the cost of size or weight.
When you see '⏳ Battery Life' products, expect: longer listening sessions, fewer charging breaks, and stress-free portability for music that goes the distance.
Works for Taking Calls
Need to take calls while enjoying your music?
These headphones have got you covered 📞! I've found that nothing's more frustrating than missing important calls because your headphones don't handle them well. These products come equipped with built-in microphones and seamless call functionality, ensuring you never miss an important conversation while immersed in your audio experience. Think of them as your personal communication assistant that switches effortlessly between entertainment and business.
These devices are specifically engineered to provide crystal-clear voice transmission during calls, featuring advanced noise-cancelling technology that helps eliminate background interference. The intuitive controls make it simple to answer calls, adjust volume, and return to music without reaching for your phone.
When you see "☎️ Works for Taking Calls" products, expect versatile audio solutions that excel at both music playback and communication, perfect for professionals and anyone who values seamless connectivity.
IPX Rating
I’ve found that IPX ratings are a bit like an umbrella — you don’t always need it, but when you do, you’re glad it’s there ☔. “IPX Rating” tells you how resistant a product is to water and sweat, making it a crucial factor for outdoor use or workouts.
Now, here’s what’s actually happening: IPX is a standard that ranges from basic sweat resistance (IPX4) to full waterproofing (IPX7 or IPX8). It means your earphones won’t die on you mid-run or if you're caught in a drizzle. Just remember, IPX ratings don’t cover dust or solid particles unless they have a second digit (like IP67). So, if you're near the beach or in the gym a lot, this is a badge to take seriously.
When you see '☔ IPX Rating' products, expect: sweat- and splash-resistant gear that won’t flinch in the rain, at the gym, or during your toughest workouts.
Tweak & Tune the Sound
Why settle for a fixed sound signature when you can shape your audio experience exactly to your preferences 🎛️?
I love products that put you in the driver's seat of your audio journey. These specialised headphones come equipped with sophisticated, customisable tuning capabilities that let you adjust every aspect of the frequency spectrum. Think of it like having a personal audio chef who can adjust the recipe to your exact taste - more bass for your workout playlist, clearer mids for podcasts, or sparkling highs for classical music.
The adjustable sound signature means you can fine-tune bass response, adjust midrange clarity, or enhance treble detail. Whether you prefer deep bass frequencies, crystal-clear midrange presence, or pristine high-frequency detail, these solutions put you in complete control of your sound 🎚️.
When you encounter "🔧 Tweak & Tune the Sound" products, expect complete sonic customisation that adapts perfectly to your unique listening preferences across different genres.
Why it Sounds Amazing
Balanced Armature Driver
Enjoy accurate and precise sound 🎯, because every nuance in your favourite music deserves to be heard with perfect clarity! I believe balanced armature drivers are like "precision instruments" that excel at reproducing intricate musical details. These incorporate tiny yet incredibly precise mechanisms that deliver audio reproduction with exceptional detail and accuracy. Think of them like Swiss watchmaking for audio - incredibly small, incredibly precise, and engineered for perfection in every detail.
The compact design and efficient operation allow them to excel at reproducing intricate musical passages with outstanding precision and control, revealing every subtle detail and gentle texture 🔬.
When you see "🔈 Balanced Armature Driver" products, expect microscopic detail retrieval that reveals every subtle musical nuance with exceptional precision and clarity.
Balanced Sound Signature
In my experience, a balanced sound signature is like a well-cooked meal—nothing overpowering, everything in harmony. If you’re someone who listens to a bit of everything—rock one day, jazz the next—this is the tuning I’d recommend. It doesn’t boost any part of the sound unnaturally, so what you hear is often how the artist intended it. 🎧
Here’s what’s actually happening: the headphones don’t favour bass, mids, or treble excessively. This results in a neutral, natural, and versatile sound that suits a wide variety of music genres. While it may not feel as “exciting” as some more coloured tunings, balanced headphones tend to offer the most accurate reproduction, making them a favourite among audiophiles and studio pros alike.
Ultra-Wide Sound Stage
Do you wish to bring the concert hall to your ears 🏛️?
I love describing ultra-wide soundstage as "audio magic" that creates a breathtaking three-dimensional environment around your head. These specialised headphones feature an exceptionally spacious soundstage that creates the illusion you're sitting in the sweet spot of a magnificent performance venue. Think of it like teleportation technology for your ears - suddenly you're not wearing headphones, you're sitting in Carnegie Hall with perfect acoustics.
The precise instrument placement and remarkable sense of space work together to transport you directly into the music, making you feel as though you're experiencing a live performance. This creates a listening experience that's grand, enveloping, and incredibly detailed 🎭.
When you encounter "😳 Ultra-Wide Soundstage" products, expect concert hall acoustics that make you forget you're wearing headphones through sheer spaciousness and realism.
Crisp Vocals & Instruments
Vocals and instruments sound so good, it's like a warm hug 🤗!
I believe that when vocals are reproduced correctly, they should feel like the artist is performing right there with you. These headphones demonstrate exceptional prowess in reproducing clear, articulate vocals and instruments, with each element rendered in stunning detail and separation. Think of it like having front-row seats to an intimate acoustic performance where every breath, every string resonance, every subtle inflection comes through perfectly.
The natural timbre and tonal accuracy create an engaging presentation where every nuance is preserved while maintaining fatigue-free listening. Each word, note, and subtle inflection is reproduced with outstanding definition and emotional connection 🎤.
When you encounter "🍿 Crisp Vocals & Instruments" products, expect vocal excellence that brings you closer to the emotional heart of every performance.
Smooth & Sweet Treble
Seeking something that sounds smooth and devoid of harshness 🥰? I tend to describe these headphones as having "silk-like highs" that caress your ears rather than assault them. These products are meticulously designed to deliver high frequencies that are wonderfully gentle, offering a listening experience that's both sophisticated and delightful. Think of it like the difference between premium chocolate and cheap candy - both are sweet, but one provides refined pleasure while the other can be overwhelming.
The carefully tuned treble presentation ensures musical details come through with remarkable clarity while maintaining natural, fatigue-free character. The refined high-frequency presentation maintains excellent detail and air while avoiding any hint of harshness or stridency ✨.
When you see "🍦 Smooth & Sweet Treble" products, expect refined high frequencies that deliver crisp detail with a touch of sweetness and sophistication.
Layered and Nuanced Sound
Imagine sitting in the second row of a grand music hall 🎼, where each instrument's placement creates a vivid sonic landscape before you. I believe these headphones recreate that precise spatial positioning, allowing you to distinctly perceive where each instrument would be on an imaginary stage. Think of it like watching an orchestra conductor - you can follow each section independently while appreciating how they work together in perfect harmony. The layered presentation ensures every element occupies its own distinct space while contributing to the whole.
This audio equipment creates a detailed listening experience where musical notes, overtones, and reverberations shine through clearly, keeping complex passages distinct and well-separated. The tuning excels at revealing subtle interplay between instruments and the natural ambiance of recording spaces 🎯.
When you see "🍰 Layered and Nuanced Sound" products, expect intricate soundscapes that reveal the depth, complexity, and artistry in your favorite music with exceptional clarity.
Perfect to Layback & Relax
In my experience, a laid-back sound is like sinking into your favorite armchair after a long day. It doesn’t push details in your face or try to overwhelm you with energy. Instead, it gives your music room to breathe and unfold naturally. Think of it like sipping a glass of smooth whisky—there’s warmth, body, and ease. These headphones or IEMs are ideal for those who want to unwind and soak in a mellow vibe, whether it's a jazz trio or acoustic singer-songwriter set. 🎧
Now, what’s actually happening here is a tuning that gently rolls off the treble and offers a warm, full low-end. The midrange stays intimate, while bass adds comfort without punch, and highs avoid fatigue, making long sessions a pleasure. You won’t get maximum detail or separation—but that’s the point. It’s not about dissecting the mix—it’s about relaxing into it. For bedtime listening or just zoning out, this is your sonic hammock. 😌
Astell&Kern Introduces The AK UW100MKII - A High-Resolution True Wireless Earbud
Gesture Control
Astell&Kern AK UW100MKII features a gesture control on both the earbuds to access with many features.
Meticulous Design
Astell&Kern AK UW100MKII is meticulously designed with contrasting surfaces of shapes, colours and high-quality materials for impeccable aesthetics.
Charging Case
Astell&Kern AK UW100MKII equips a Type-C port to charge the case and the earbuds for an extended listening journey.
Accessories to Get you Started
All You Need To Know About The Astell&Kern AK UW100MKII
Charging Case: Approx. 65g
Cradle: 72 x 32 x 34(mm)
2. Charging Case
3. Eartips (XS, S, M, L, XL)
4. USB Type-C Charging Cable
5. Quick Start Guide
6. Warranty Card
Don't sweat it, this
Astell&Kern - AK UW100MKII comes with a 1 Year warranty
from Astell&Kern that covers manufacturing defects.
All products featured on Headphone Zone are backed by an original manufacturer's warranty.
Read more about Astell&Kern's warranty in India.
The detail and ultimate fidelity of the playback is one of the best I’ve ever heard from a True Wireless earphone. The resolving power of the design really lets the listener peer into the music.
The UW100MKII have a feature common in true wireless earbuds: automatic wearer detection, so they can pause music when you remove them and resume it when you put the buds back in your ear.
The default EQ mode was our go-to for most genres, preserving high-frequency clarity while maintaining enough low-end oomph.
I think that Astell & Kern did a fantastic job with the UW100MKII: they sound great and offer the right amount of functionality, prioritising sound quality over gimmicky features.
With one balanced armature, the UW100MKII is able to deliver a great sound, with more details and transparency than most true wireless earbuds are capable of.
The transition from the upper midrange into the treble is rather seamless with very good clarity and detail. Percussion has excellent snap.
Have a question? Get in touch!
Check out the most common questions our customers ask. Still have questions? Talk to our Headphone Gurus.
What is the warranty period on the Astell&Kern AK UW100MKII and how do I claim warranty?
Can I connect the Astell&Kern AK UW100MKII earbuds to more than one device?
Here are the steps for multi-pairing connection:
1. If Device 1 is already connected, please disconnect the Bluetooth connection with Device 1. (Unpair first)
2. Please Touch and hold the AK UW100MKII for 3 seconds to enter pairing mode.
3. Please Connect the AK UW100MKII to Device 2.
4. Once the connection with Device 2 is complete, please select the AK UW100MKII from the device list on Device 1 again.
5. You can confirm that both Device 1 and Device 2 are connected simultaneously.
How does the passive noise isolation work?
What is Qualcomm True Wireless Stereo Plus, and how does it work?
Does the Astell&Kern AK UW100MKII have a companion app?
Please note, for Android users, that the AK Connect App is compatible with the latest version of Android 15.
However, for users on Android 14, Astell&Kern will be releasing the AK Connect’s Android 14 update soon.
So we ask users who may be on Android 14, to wait a few days to pair it with the AK Connect app. All other functionality of the product remains unaffected.
How do I activate voice assistance?
Other Details
| Generic Name | True Wireless Earbuds |
| Importer Details | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
| Net Quantity | 1 |
| Manufacturer Details | Name: Dreamus Company Address: 18-gil 5, Bangbaero, Seocho-Gu, Seoul, Korea 06664 |
| Package Contents | Astell&Kern AK UW100MKII Earbuds (L/R) Charging Case Eartips (XS, S, M, L, XL) USB Type-C Charging Cable Quick Start Guide Warranty Card |
Manuals & Guides
User Manual | AK UW100MKII
True Wireless Earbuds