









🎶 Elevate your sound game—because your ears deserve the best.
The Astell&Kern AK UW100MKII are premium true wireless in-ear earphones featuring a high-performance 32-bit AKM DAC, Knowles Balanced Armature drivers, and aptX Adaptive codec for hi-res audio. With 9.5 hours of continuous playback and a total of 29 hours including the charging case, these earbuds combine marathon battery life with advanced Bluetooth 5.2 connectivity. Designed for professionals who demand crystal-clear calls, they incorporate Qualcomm’s cVc 8.0 noise reduction and offer customizable sound profiles and touch controls through a dedicated app. Perfect for audiophiles and multitaskers seeking uncompromised sound quality and seamless device switching.







| ASIN | B0CFFF2249 |
| Age Range Description | Adult |
| Audio Driver Type | Balanced Armature Driver |
| Battery Average Life | 9.5 Hours |
| Best Sellers Rank | 4,834 in In-Ear Headphones |
| Bluetooth Range | 10 Metres |
| Bluetooth Version | 5.2 |
| Box Contents | Astell&Kern AK UW100MKII true wireless earbuds, Silicon ear tips (5 sizes: S, M, L, XL, XXL), USB charging cable, User Manual, Wireless Charging Case |
| Brand Name | Astell&Kern |
| Cable Features | Without Cable |
| Carrying Case Battery Average Life | 19.5 Hours |
| Carrying Case Battery Capacity | 10 Hours |
| Carrying Case Color | Black |
| Carrying Case Height | 32 Millimetres |
| Carrying Case Length | 72 Millimetres |
| Carrying Case Material | Plastic |
| Carrying Case Weight | 65 Grams |
| Carrying Case Width | 34 Millimetres |
| Colour | Dark Grey |
| Compatible Devices | Android and iOS devices, Bluetooth-enabled devices supporting SBC, AAC, aptX Adaptive codecs |
| Control Method | App |
| Control Type | Touch Control |
| Controller Type | Wireless touch control |
| Customer Package Type | FFP |
| Customer Reviews | 3.2 3.2 out of 5 stars (17) |
| Earpiece Shape | Round (Round) |
| Enclosure Material | Plastic |
| Frequency Range | 20 Hz - 20,000 Hz |
| Global Trade Identification Number | 08809755504311 |
| Headphone Form Factor | In Ear |
| Headphone Jack | No Jack |
| Headphones Ear Placement | In Ear |
| Item Type Name | True Wireless Earphones |
| Item Weight | 79 Grams |
| Manufacturer | Astell&Kern |
| Model Name | AK UW100MKII |
| Model Number | AK UW100MKII |
| Network Connectivity Technology | Wireless |
| Noise Control | Passive Noise Cancellation |
| Number of Items | 1 |
| Number of Power Levels | 2 |
| Product Features | AKM AK4332ECB 32-bit DAC, Adaptive aptX HD, Bluetooth 5.2, Capacitive Touch, Knowles Balanced Armature |
| Series Number | 1 |
| Specific Uses For Product | Music, Travel |
| Style Name | Modern, Minimalist |
| Theme | High-Fidelity Audio |
| Unit Count | 1.0 count |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | Bluetooth |
M**Y
Great sound
Great sound. Better then most buds i have. Only competition is my galaxy buds pro 3. I think these are more honest and hi fi. I like them. Had to download api for app which is poor in 2025
S**B
Broken on arrival
Firstly. I find the fit really comfortable, especially with comply tips. However the right tough pad (pause, skip etc) only worked occasionally. The left one worked fine. The left bud lost connection and I had to reset them, but worst of all the left balance armature crackled at high mid to high volume and is broken. The right speaker worked perfectly. I am planning to buy another pair as despite Amazon claiming they are new, they came with a dirty case. The pair I have, despite being faulty do sound great at lower volume, which is why I am going to try a second pair. Very disappointed. I will update once I have tested a second pair.
N**Y
Good quality and good price
Very clear sound, a little loose but that is with all larger and higher quality models, overall very good
M**N
Sound quality par excellence
Excellent. Best in-ears I have. Sound quality is solid and fit is comfortable. Highly recommended.
V**1
No iPhone connection on left channel
I love Astel and Kern players so bought these to pair with my iPhone Pro 15 max but no matter what I attempted following advice from all sources available to me I could not get them to operate on the left channel. After a hard reset they wouldn’t even play on either channel. I suspect that the pair I was sent where probably a return given the seals on the box but I can not be certain. Anyway back to my reliable Sony earbuds. At £99 if they worked would have been a bargain but at full price if they had worked I would have wanted more for my money. Shame really
H**R
I have ak35sr so I thought these ak buds would be great. Could not pair
Returned - could not pair
D**M
Poor sound quality
Definitely wouldn't recommend these They keep falling out Poor sound quality /such a shame as I like the brand Definitely recommend there music players tho
C**S
Wouldn't connect to App
Phone and MP3 player found these easily but they wouldn't connect to their own app, even after a factory reset, which made them useless as you can't control EQ or noise cancelling without this. Also they are super fiddly to try and remove from charging case. Returned!
V**O
Seen many reviews blaming this product but frankly, I do not see anything wrong. Other than it's size which is super big, it still fit nicely and light enough. No skipping, no loosening of buds, played for 10 hours straight with no drop in signal. Basically it is a good buds.
Trustpilot
Hace 3 semanas
Hace 1 semana