Bose Ultra Open-Earbuds 881046-0020
The open-ear design uses OpenAudio technology for private, rich sound while maintaining spatial awareness, with Bose Immersive Spatial Audio and a flexible grip for a secure fit. Weighing 6g per earbud, they deliver 7.5 hours of playback, 27 hours total with the case, and a 10-minute quick charge for 2 hours, with IPX4 sweat resistance. These are ideal for runners and commuters who need to hear their surroundings but not suited for frequent callers due to the 48 microphone score.
이 Earbuds 정보
The open-ear design uses OpenAudio technology for private, rich sound while maintaining spatial awareness, with Bose Immersive Spatial Audio and a flexible grip for a secure fit. Weighing 6g per earbud, they deliver 7.5 hours of playback, 27 hours total with the case, and a 10-minute quick charge for 2 hours, with IPX4 sweat resistance. These are ideal for runners and commuters who need to hear their surroundings but not suited for frequent callers due to the 48 microphone score.
- Form factor open-ear
- Driver type Dynamic
- Wireless
- Bluetooth version 5.3
- Battery life hours 7.5
- Case battery hours 19.5
- Water resistance IPX4
The 30-Second Version
The most comfortable open-ear buds we've ever tested, with sound so good you'll forget they're open. But they absolutely fumble calls, so keep your phone handy.
Overview
The Bose Ultra Open Earbuds are the closest thing to wearing nothing while still getting surprisingly rich, private sound. They're not trying to beat noise-canceling in-ears at their own game. Instead, they let the world in, and they do it better than almost anything else out there. The killer feature here is that you can hear a car coming, a colleague calling your name, or your coffee order being announced, all while a podcast or playlist plays in the background. For a subset of users, that awareness is worth every penny.
But these are not for everyone. At $299 to $379, they're a premium niche product. Call quality is a real weak point, and you're giving up any sense of isolation. If your priority is drowning out a noisy commute or taking important calls, look elsewhere. If you want something that disappears on your ears and keeps you connected to your surroundings, you've found it.
Performance
The sound quality genuinely surprised me. I expected thin, leaky audio. Instead, Bose's OpenAudio tech delivers a full, clear presentation that sits in the top 15% of true wireless earbuds we've tested. Bass is present and punchy enough for an open design, and the spatial audio feature adds a fun, cinematic layer when watching videos. Comfort is best-in-class. The flexible joint grip is like a gentle hug for your ear, and after hours of wear, I forgot they were there. The letdown? Calls. With a mic score barely scraping average and a raw calls rating of 47.8 out of 100, your voice often sounds distant and compressed. Battery life is solid but unremarkable at 7.5 hours per charge, plus quick charging that nets 2 hours from 10 minutes.
Pros & Cons
Pros
- Astonishingly comfortable, even for all-day wear 93th
- Surprisingly rich, private sound for an open-ear design 89th
- Lets you stay fully aware of your surroundings 85th
- Immersive spatial audio is a neat bonus 79th
Cons
- Call quality is straight-up bad 29th
- No active noise cancellation, and no isolation
- Pricey for what you get
- Battery life is just okay
The Word on the Street
Specifications
Full Specifications
Design
| Form Factor | open-ear |
| Wearing Style | Dual Ear True Wireless Earbud |
| Weight | 0.0 kg / 0.0 lbs |
Audio
| Driver Type | Dynamic |
| Drivers | 1 |
| Codecs | AAC, SBC |
| Surround | Spatial Audio |
Noise Control
| ANC | No |
Connectivity
| Wireless | Yes |
| Bluetooth | 5.3 |
| Profiles | A2DP, HFP, BLE |
| Multipoint | No |
| Range | 9.1 |
Earbud Battery
| Battery Life | 7.5 |
| Charge Time | 1 |
| Fast Charging | 10 Minutes for 2 Hours |
| Charging | USB-C |
Case Battery
| Case Battery | 19.5 |
| Case Charging | USB-C |
| Wireless Charging | No |
Microphone
| Microphone | Yes |
| Mic Count | 4 |
| NC Mic | No |
Features
| Touch Controls | Yes |
| App | Bose Music |
| Volume Limiting | No |
| Bone Conduction | No |
| Water Resistance | IPX4 |
Value & Pricing
You're paying a premium for the open-ear form factor, not for best-in-class audio or features. If you need environmental awareness and really value all-day comfort, the price is justifiable. But if you can live with a transparency mode on a great set of noise-canceling earbuds, you'll get better sound, calls, and isolation for less money.
vs Competition
Don't cross-shop these with the Sony WF-1000XM5 or Sennheiser Momentum True Wireless 4. Those are sealed, ANC-heavy buds meant to block the world out. The Bose are for letting it in. If you need a direct open-ear rival, something like the Sony LinkBuds (open ring design) comes closer, but the Bose sound fuller. The Samsung Galaxy Buds3 Pro offer a better middle ground with excellent ambient mode, but they seal the ear and are less comfortable over long stretches. Ultimately, if situational awareness is your number one priority, no closed bud can match the Bose.
| Spec | Bose Ultra Open-Earbuds 881046-0020 | Technics EAH-AZ100 EAH-AZ100 | Sony WF-1000XM6 WF-1000XM6 | Sennheiser MOMENTUM True Wireless 4 | Samsung Galaxy Buds3 Pro SM-R630NZWAXAR | Apple AirPods Pro MFHP4LL/A |
|---|---|---|---|---|---|---|
| Form Factor | open-ear | in-ear | in-ear | in-ear | in-ear | in-ear |
| Driver Type | Dynamic | Dynamic | Dynamic | dynamic | Dynamic | Dynamic |
| Wireless | true | true | true | true | true | true |
| Active Noise Cancellation | false | true | true | true | true | true |
| Bluetooth Version | 5.3 | 5.3 | 5.3 | 5.4 | 5.4 | 5.3 |
| Battery Life Hours | 7.5 | 8 | 8 | 30 | 6 | 8 |
| Case Battery Hours | 19.5 | 28 | 24 | 30 | 26 | 24 |
| Water Resistance | IPX4 | IPX4 | IPX4 | IP54 | IP57 | IP57 |
| Multipoint | false | true | true | true | true | true |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| Bose Ultra Open-Earbuds 881046-0020 | 29.4 | 55.2 | 79 | 84.5 | 69 | 93.4 | 78 | 89.3 |
| Technics EAH-AZ100 EAH-AZ100 Compare | 96.6 | 96.9 | 79 | 99.1 | 79.1 | 93.4 | 99.1 | 89.3 |
| Sony WF-1000XM6 WF-1000XM6 Compare | 96.6 | 99.7 | 79 | 96.2 | 75.7 | 70.9 | 99.1 | 94.4 |
| Sennheiser MOMENTUM True Wireless 4 Compare | 96.6 | 99.7 | 33.4 | 91.9 | 97.5 | 93.4 | 90 | 89.3 |
| Samsung Galaxy Buds3 Pro SM-R630NZWAXAR Compare | 96.6 | 96.9 | 98.8 | 91.8 | 72.7 | 93.4 | 99.6 | 89.3 |
| Apple AirPods Pro MFHP4LL/A Compare | 96.6 | 80.5 | 98.8 | 83.3 | 75.7 | 70.9 | 97.8 | 99.3 |
Common Questions
Q: Do the Bose Ultra Open Earbuds support Auracast?
No, they don't. Despite having Bluetooth 5.3, there's no Auracast support baked in.
Q: Can I wear these with glasses or a hat?
Absolutely. The flexible joint grips your outer ear without pressing against most sunglass or eyeglass frames, and they stay put under a beanie or cap.
Q: How fast do they charge?
Super fast. Pop them in the case for 10 minutes and you'll get roughly 2 hours of playback, which is a lifesaver if you forget to charge overnight.
Who Should Skip This
If you need clear, professional-sounding calls or any kind of noise cancellation, these aren't for you. Go grab the Sony WF-1000XM5 instead. You'll get excellent voice pickup and class-leading ANC at a lower price, and you can just use ambient mode when you need awareness.
Verdict
Buy the Bose Ultra Open Earbuds if you want the most comfortable, secure way to stay tethered to your environment without sacrificing music quality. They're ideal for runners, office multi-taskers, or anyone who hates the plugged-ear feeling. Just don't buy them expecting to take a single important phone call. Your caller will notice.