Panasonic Technics EAH-AZ40W
A 6mm dynamic driver paired with an acoustic harmonizer delivers balanced sound, while six MEMS microphones with JustMyVoice technology isolate speech for exceptionally clear call quality. The lightweight, IPX4-rated earbuds remain comfortable for workouts and support Bluetooth 5.2 multipoint to toggle between devices effortlessly. These suit commuters and mobile workers who prioritize crisp voice calls and the convenience of 25 hours total battery life with a 15-minute quick charge for 90 minutes of playback.
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About Panasonic EAH-AZ40WFor audiophiles seeking a blend of style, comfort, and superior sound quality, the Technics EAH-AZ40 True Wireless Earbuds, presented in a sleek black finish, are a perfect choice. These high-quality earbuds are a testament to Technics' heritage of excellence, offering an immersive high-fidelity sound experience that's ideal for both music enthusiasts and professionals alike.The innovative design of the Technics acoustic chamber, harmonizer, and 6mm drivers work in harmony to deliver crystal clear sound with an impressive range and depth. Whether you're indulging in your favorite tracks or making important calls, you'll appreciate the smooth, detailed highlights and resonant bass these earbuds produce.Featuring six individual microphones and advanced wind noise reduction, the EAH-AZ40 earbuds ensure your voice is transmitted with sparkling clarity during calls. The JustMyVoice Technology further enhances your communication experience by isolating and amplifying your words while minimizing surrounding noise.Comfort is paramount with these stylish earbuds. They are compact and lightweight, designed to fit snugly and comfortably in your ears. With four sizes of silicone earpieces (XS, S, M, L), you can customize the fit to ensure immersive sound and maximum comfort. Moreover, these earbuds boast an IPX4 water resistance rating, making them suitable for use in various weather conditions.The Technics EAH-AZ40 earbuds come with a matching charger case, adding a touch of elegance to your audio gear. The earbuds offer up to 7.5 hours of playback on a single charge, and the compact charging case provides up to 25 hours of additional charge. A quick charge feature also allows for 90 minutes of playback, ensuring your music never stops.With the Technics Audio Connect App, pairing your earbuds is a breeze. The app also allows you to tailor noise cancelling and sound mode settings to your exact specifications and assists in finding your headphones. Additionally, the earbuds support Bluetooth Multipoint Pairing, allowing you to connect to two Bluetooth devices simultaneously.Activate your preferred voice assistant, Amazon Alexa or Siri, by simply pressing the earbud's touch sensor. The high-performance MEMS microphones and Voice Detection Mics ensure clear calls, even in noisy environments, by actively capturing your voice and reducing surrounding noise.Experience the blend of durability, innovation, and superior sound quality with the Technics EAH-AZ40 True Wireless Earbuds. They are more than just earbuds; they are a statement of style and a testament to your love for high-quality sound.Panasonic EAH-AZ40W FeaturesSwitch Seamlessly From Your Computer to Mobile DevicesErgonomic, Comfortable Design for A Custom FitHear and be Heard, Even in Noisy SurroundingsEasy Setup with Long Battery LifeWarranty InformationThis product has a limited warranty of 12 months.https://na.panasonic.com/us/standardwarranty855-772-8324Join VIP PROEarn 2X Points + Exclusive Perks!Sell or Trade your GearGet started in 3 easy stepsKey FeaturesEnjoy crystal-clear audio with these Panasonic true wireless earbuds for immersive sound.Experience all-day comfort with the ergonomic design of these Panasonic EAH-AZ40W earbuds.Get up to 25 hours of playtime with the charging case, perfect for long commutes and travel.Stay connected with Bluetooth 5.2, offering a stable connection up to 33 feet away.The IPX4 water resistance rating protects these earbuds during workouts and outdoor activities.Built-in MEMS mic ensures clear calls, making these earbuds ideal for work or personal use.What's in the box:Panasonic Technics EAH-AZ40W True Wireless Earbuds (Black)Charging Cradle0.66' USB-C Charging Cord4 Earpieces Set (XS/S/M/L)Panasonic 1 Year Limited Warranty
- Enjoy crystal-clear audio with these Panasonic true wireless earbuds for immersive sound.
- Experience all-day comfort with the ergonomic design of these Panasonic EAH-AZ40W earbuds.
- Get up to 25 hours of playtime with the charging case, perfect for long commutes and travel.
- Stay connected with Bluetooth 5.2, offering a stable connection up to 33 feet away.
- The IPX4 water resistance rating protects these earbuds during workouts and outdoor activities.
- Built-in MEMS mic ensures clear calls, making these earbuds ideal for work or personal use.
The 30-Second Version
The Panasonic EAH-AZ40W has some of the best microphone quality we've ever measured, beating practically every rival. ANC and call performance are excellent, but the fit is clunky and will annoy you during long listening sessions. If you snag them under $150 primarily for calls, it's a great deal. Otherwise, look elsewhere.
Overview
The Panasonic Technics EAH-AZ40W earbuds are a weird mix. On one hand, they pack a microphone array that outperforms almost anything else we've tested, making them an absolute beast for phone calls and Zoom meetings. On the other, the fit is kind of a letdown, and almost nobody's talking about them, which might explain why you can find them at wildly different prices.
Technics clearly aimed these at the office-on-the-go crowd. The ANC is solid, the battery covers a full workday, and you get multipoint for switching between a laptop and phone. But if you demand all-day comfort or the kind of sound that makes you close your eyes and forget the world, these might not be your top pick.
Performance
Our benchmark scores tell exactly this story. The microphone quality ranks in the top 3% of all earbuds we've cataloged, which is seriously impressive for a model that isn't a flagship. ANC came in at a strong 88th percentile, so it blocks out chatty coworkers and rumbling trains without breaking a sweat. Sound hovers around the 80th percentile, meaning it's good and clear with a bit of bass warmth, but not on the level of Sony or Sennheiser's best. Battery life is fine at about 7.5 hours in the buds with ANC on, but the comfort score is where it falls apart, sitting at a mediocre 28th percentile. If you have smaller ears or hate the plugged-up feeling, you'll feel it.
Pros & Cons
Pros
- Call quality is virtually unbeatable for this price class. 97th
- Adaptive ANC works surprisingly well for blocking background noise. 92th
- Multipoint pairing is rock-solid and fuss-free. 88th
- Fast charging: 15 minutes gets you 90 minutes of playback. 80th
Cons
- The fit is bulky and can get uncomfortable after an hour. 4th
- Almost no real-world reviews or social buzz to back them up. 28th
- Sound is clean but lacks the detail of top-tier competitors.
- Codecs are limited to SBC and AAC, no LDAC or aptX.
Specifications
Full Specifications
Design
| Form Factor | in-ear |
| Wearing Style | true wireless |
| Ear Tips | XS, S, M, L |
Audio
| Driver Type | dynamic |
| Driver Size | 6 |
| Drivers | 1 |
| Freq Min | 20 |
| Freq Max | 20000 |
| Hi-Res Audio | Yes |
| Codecs | SBC, AAC |
Noise Control
| ANC | Yes |
| ANC Type | adaptive |
| Transparency | No |
Connectivity
| Wireless | Yes |
| Bluetooth | 5.2 |
| Profiles | A2DP, AVRCP, HSP, HFP |
| Multipoint | Yes |
Earbud Battery
| Battery Life | 7.5 |
| Charge Time | 2 |
| Fast Charging | 15 minutes for 90 minutes playback |
| Charging | USB-C |
Case Battery
| Case Battery | 25 |
| Case Charging | USB-C |
| Wireless Charging | No |
Microphone
| Microphone | Yes |
| Mic Count | 6 |
| NC Mic | Yes |
Features
| Voice Assistant | Amazon Alexa, Siri |
| Touch Controls | Yes |
| App | Technics Audio Connect |
| Gaming Mode | No |
| Bone Conduction | No |
| Water Resistance | IPX4 |
Value & Pricing
This is where things get weird. We've seen these listed anywhere from $100 to over $3,000 across different vendors, which is just absurd. At the low end, they're a steal for someone who makes calls all day. At the high end, they're a joke. If you can find them for around $100-150, the microphone chops alone justify the buy, especially since much pricier flagships rarely beat it in that department. Just be sure you're shopping at a reputable retailer because that price spread is a red flag.
vs Competition
Stacked against the usual suspects, the AZ40W is a specialist. The Sony WF-1000XM5 and Bose QuietComfort Ultra have better comfort, more refined sound, and stronger ANC, but they cost much more and don't match the Panasonic's voice pick-up. Technics' own Reference Class EAH-AZ100-K likely brings a more polished soundstage and nicer fit, but again, at a higher price. The Sennheiser Momentum True Wireless 4 outclasses these in pure audio fidelity. And the Samsung Galaxy Buds3 Pro offer a smarter ecosystem if you're in that camp. So, if your priority list starts with call quality and ends with saving a few bucks, the AZ40W makes sense. For anything else, the competition pulls ahead.
| Spec | Panasonic Technics EAH-AZ40W | Technics Reference Class EAH-AZ100-K | Sony WF-1000XM5 WF-1000XM5 | Bose QuietComfort Ultra 896637-0010 | Sennheiser MOMENTUM True Wireless 4 | Samsung Galaxy Buds3 Pro SM-R630NZAAXAR |
|---|---|---|---|---|---|---|
| Form Factor | in-ear | in-ear | in-ear | in-ear | in-ear | in-ear |
| Driver Type | dynamic | Planar Magnetic | dynamic | Dynamic | dynamic | Dynamic |
| Wireless | true | true | true | true | true | true |
| Active Noise Cancellation | true | true | true | true | true | true |
| Bluetooth Version | 5.2 | 5.3 | 5.3 | 5.3 | 5.4 | 5.4 |
| Battery Life Hours | 7.5 | 10 | 8 | 6 | 30 | 6 |
| Case Battery Hours | 25 | 28 | 24 | 18 | 30 | 26 |
| Water Resistance | IPX4 | IPX4 | IPX4 | IPX4 | IP54 | IP57 |
| Multipoint | true | true | true | true | true | true |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| Panasonic Technics EAH-AZ40W | 88.3 | 96.8 | 78.9 | 80.2 | 74.3 | 27.8 | 91.5 | 4.3 |
| Technics Reference Class EAH-AZ100-K Compare | 96.5 | 96.8 | 78.9 | 96.5 | 82.6 | 70.4 | 99.1 | 89.4 |
| Sony WF-1000XM5 WF-1000XM5 Compare | 96.5 | 96.8 | 78.9 | 99.3 | 76 | 93.4 | 100 | 80.2 |
| Bose QuietComfort Ultra 896637-0010 Compare | 96.5 | 90.3 | 78.9 | 96.4 | 47.2 | 93.4 | 97.8 | 96.9 |
| Sennheiser MOMENTUM True Wireless 4 Compare | 96.5 | 99.7 | 33.3 | 91.9 | 97.7 | 93.4 | 89.9 | 89.4 |
| Samsung Galaxy Buds3 Pro SM-R630NZAAXAR Compare | 96.5 | 96.8 | 98.9 | 89.9 | 73 | 93.4 | 97.8 | 89.4 |
Common Questions
Q: Does the 25-hour battery claim include ANC turned on?
No, the 25-hour total is with the charging case and likely with ANC off. With adaptive ANC active, expect around 7 to 7.5 hours from the earbuds themselves, and a couple of full recharges from the case before plugging in.
Q: Can I use each earbud independently for calls?
Yes, thanks to Bluetooth 5.2 and the intelligent mic array, either earbud works solo for calls. The six-microphone setup and wind reduction still kick in when using just one.
Q: Do these support wireless high-res audio codecs like LDAC?
No. The AZ40W only supports SBC and AAC over Bluetooth. The Hi-Res label applies to the driver's ability to reproduce high-frequency detail, but you won't get that via wireless codec; it would require a wired connection, which these true wireless earbuds don't offer.
Who Should Skip This
If comfort is non-negotiable for you, skip these. Our benchmarks put fit near the bottom of the pack, meaning many ears will feel pressure or fatigue quickly. Gym-goers, runners, or anyone wanting that barely-there feel should look at the Bose QuietComfort Ultra or Sony WF-1000XM5. Also, if you care about audio codecs beyond AAC or resent paying for a product with almost no community feedback, these aren't your match.
Verdict
These are the definition of a niche buy. If you spend hours on calls every day and need your voice to cut through like a hot knife through butter, the AZ40W is a hidden gem, provided you find them at a sane price. They absolutely nail microphone performance and ANC, and the battery life is respectable. But the subpar comfort and near-zero street cred mean most people will be happier with a more balanced alternative. Get them for the mic, not the music.
