REASONS TO BUY
Super cozy
Respectable sound
Good noise cancellation
Long battery
Low cost
REASONS TO AVOID
Pairing troubles
1More SonoFlow Review
A quality headset that does it all at a wallet-friendly price, with above-average performance that falls short of stellar
Credit: Matt Lighthart
By Genaveve Bradshaw ⋅ Senior Review Analyst ⋅ August 1, 2025
Contributions From: Rachael Lamore & Lissette Velasquez
RELATED: Best Wireless Headphones of 2025
Our Verdict
The 1More SonoFlow offers great all-around performance at a budget price. The sound mix is colorful, with enough detail and depth to please casual listeners across a wide range of musical tastes. The ANC is a standout among low-cost models, with sufficient power to block out distracting conversations. Plus, it's super comfy and has a marathon 50-hour battery life, handling all-day library study sessions, office grinds, and cross-country travels with ease. So what's the catch? It performs well across the board, but just not quite as good as some other headphones. While it's not a standout in any one metric, the SonoFlow is easily the best bang for your buck.
Our Analysis and Test Results
The SonoFlow is 1More's first-ever on-ear headphones, and boy, did they do an excellent job. Not to be confused with the reputable Sonos brand, the SonoFlow is a budget headphone that delivers Bose-like comfort and a flavorful sound mix.
Rigorous hands-on analyses backed by objective laboratory testing - that's how we review products.
Credit: Matt Lighthart
Sound Quality
For fun, high-quality sound at a budget price, the SonoFlow is the ticket. We enjoyed the way the sound mix is sculpted, with the lows and highs pushed to center stage for a pleasing, punchy persona across any genre. Its powerful 40-millimeter dynamic drivers rally across all volume levels without becoming too boomy or shouty, even when cranked to the max. You'll hear finer details and feel more immersed with some ultra-premium headsets, but for the price point, the SonoFlow stands out, with great sound quality that rivals many higher-cost models.
With a sound profile expertly tuned by Grammy Award-winning sound engineer Luca Bignardi, you know it's good. The bass has a pleasing warmth and distinctive (albeit slightly undetailed) presence in thumpy Hip-Hop tracks like “Dis Generation” by A Tribe Called Quest and in smoky Regional Mexican instrumentals like “Lejos (En Vivo)” by Marca MP.
Unfortunately, the mids don't get the same princess treatment as the lows and sound somewhat underemphasized. However, vocals and guitars still sound clean and textured, adequate for singer-songwriter and indie rock artists like Widowspeak, Maya Delilah, and Taylor Swift. The highs are dialed up just enough to add excitement to the mix without becoming harsh or tinny, though we wish there was a little more vibrancy at the higher end of the spectrum to fully enjoy all the details. Many testers say, “Most people would be stoked with this blend.”
Red accents add a pop of color to the spacious earcups.
Credit: Matt Lighthart
Soundstage
The earcups are roomy, letting sound bounce around and play within your ear folds to create an immersive feel, but it could use a tad more expansion. It has a great horizontal spread but lacks some height compared to some premium models. For example, when listening to the groovy and instrument-dense track “Baby” by Brittany Howard, individual sounds can be pointed out to a specific location on a virtual stage, but they don't feel like they are completely filling the floor-to-ceiling space. It “provides a great broad overview but isn't ready for a close-up,” according to our expert tester.
Frequency Response
To complement our music enthusiasts' opinions, we empirically assessed sound quality in our state-of-the-art audio lab. The resulting frequency response gives a broad overview of the SonoFlow's sound signature and helps us determine which musical genres shine and which feel lackluster.
Darwin is our head simulator, which is responsible for recording all audio. Darwin's expertly crafted human-like ears funnel sound in much the same way sound travels through your ears. SoundCheck software then interprets the recorded sound bits into a frequency response curve.
Credit: Matt Lighthart
The SonoFlow tracks the general layout of our Target Response Curve, indicating that the blend of emphasized lows and highs complements a variety of musical tastes. The bass is slightly higher than our Target Curve, and we felt that subtle bass-heavy power when listening to funk or rap tracks. The mids are lower and narrower than our Curve, pushing some vocals and instruments back from the center stage, which was particularly noticeable in singer-songwriter mixes.
The highs above the 5600 Hertz fall below our Curve, validating our experience of wanting a bit more sparkle to fully enjoy this range. Still, many users will love this “V-shaped” mix, particularly rock and pop devotees who favor a punchy and enthusiastic listening experience.
The roomy earcups are perfect for users of all ages and sizes.
Credit: Matt Lighthart
Comfort and Fit
1More clearly took design inspiration from Bose when fashioning the SonoFlow. They are great for marathon listening sessions. We wore them for up to eight hours without experiencing sensitive zones or sweat spots. The clamping force feels just right, enough to handle some decent head bobbing but not so much to put pressure on your ears.
We didn't immediately experience any discomfort with earrings or glasses, but they could become bothersome for some users with extended wear.
Credit: Matt Lighthart
The earpads and headband are made with plush cushions wrapped in breathable faux leather. They aren't waterproof, so gym goers will want to minimize sweat buildup.
In addition to the ultra-soft materials, the headband is reinforced with a metal slider that adjusts to fit heads of all sizes.
Credit: Matt Lighthart
The earcups are among the largest, measuring at a spacious 62 x 41 millimeters. But despite the plush materials and large dimensions, the headphones don't feel bulky. At just 255 grams (or 0.6 pounds), one of our testers noted that the SonoFlow “almost feels like a toy” because of its lighter weight.
Listen in to hear the SonoFlow's ANC capabilities for yourself. In a simulated bustling cafe, low-frequency hums and conversations are mostly removed, though they are still slightly audible. There's a clear difference between the active and passive noise canceling modes, indicating that the noise-blocking technology continuously adapts to the environment.
Credit: Matt Lighthart
Noise Cancellation
The SonoFlow has one of the best noise-canceling technologies we have experienced on a budget. The 24-decibel sound attenuation is substantial, but it can't compete with premium models.
1More's QuietMax technology uses five microphones to sense sounds in the environment and a special algorithm to cancel them. Our laboratory analysis shows that the noise cancelation technology is mainly active in the sub-800 Hertz frequency range, similar to other ANC models.
In the real world, the ANC is particularly effective at blocking human speech, though occasionally some louder conversations come through as mumbles. We could distantly hear keyboards, microwaves, and door knocks. In addition to ANC, the headphones feature a Transparency mode that lets external sounds from the environment pass through. The Transparency mode is functional, but doesn't sound natural.
In a world of endless options, the SonoFlow stands out for its incredible value.
Credit: Matt Lighthart
Ease of Use
Intuitive button controls and a user-friendly app make most features run smoothly, but connecting to multiple devices can be frustrating.
It comes with a complementary carrying case and a compact fold-up design, making traveling much easier.
Controls
The all button controls (no touch commands here) are easy to use and reliable. On the left side, a multipurpose button does everything from managing phone calls and pausing the music to powering off. On the right are buttons for noise cancellation and adjusting the volume (or skipping tracks).
The app features fine-tuning the musical blend, accessing Multipoint connectivity, white noise, and soothing sound selections.
Credit: Matt Lighthart
Customization
While the 1More Music app lacks device management, it does offer a fun mix of EQ customizations. The 12 EQ presets are variable enough to cover a wide range of musical genres, and the 10-point manual slider lets you sculpt the sound profile to your exact liking.
We like that the buttons are easy to locate by touch.
Credit: Matt Lighthart
Connectivity
Connectivity is a bit hit or miss with the 1More. With Apple and Android devices, forming an initial wireless connection is easy and reliable. The Bluetooth 5.0 connection is stable, with a measured range of 138 feet in an outdoor setting. However, trouble can occur when trying to connect to a second device.
Pairing one device forms a reliable, long-range connection. Once you connect two, however, the range is significantly hindered.
Credit: Matt Lighthart
The SonoFlow features Multipoint technology, allowing you to connect to two devices simultaneously. But this feature is error-prone and cumbersome. Multipoint is buried under the “Experimental Features” in a hidden menu. Once enabled, getting into discovery mode to connect a second device is a problem. Sometimes it works, and sometimes it doesn't. It reliably holds the connection when it works if the headphones stay powered on. But as soon as the headset turns off, Multipoint is disabled, and you have to go through the process again. Every. Single. Time.
The Multipoint feature is great, but getting the headphones to pair with a second device can be a lengthy back-and-forth process.
Credit: Matt Lighthart
When pairing the headset to a laptop instead of a phone, the connection process is time-consuming and inconvenient. You must disconnect the headphones from your phone's connected devices before the headset can be paired. The app does not list connected devices, so you can't manage connections or tell the headphones to forget devices.
We analyzed Amazon user reviews for connectivity concerns; data was gathered on 08/01/2024.
Most Amazon reviewers are satisfied with their connectivity experience. Only 0.31% of one-star negative reviews report any connectivity issues, perhaps because most users are not using the Multipoint feature.
Battery
With a measured 50-hour playback time, the SonoFlow has one of the longest battery lives among headphones supporting ANC.
According to the manufacturer, five minutes of charging will provide five hours of playtime, and eighty minutes will fully recharge the battery. If you are away from a charger and your headset dies, you can plug it into your device and continue listening.
Call Quality
With five microphones and an AI-powered voice isolation algorithm, the SonoFlow does a good job of relaying your voice for phone calls. While its overall performance is above average, you won't get crystal-clear calls.
When we break down our voice isolation tests, we see that the SonoFlow functions nearly equally well in rowdy, noisy environments as in quiet, controlled spaces.
Our male and female voices come through clearly, but it is apparent that the call is being made in a public space. Both voices are slightly crackly, but all words are distinct and don't cut out.
Credit: Matt Lighthart
We simulated a phone call from a roaring subway with loads of loudspeaker announcements and busy booming railways. There's a bit of graininess to the caller's voice, and background noises aren't fully removed, but the caller remains loud and easy to understand, regardless of the setting.
Again, both of our caller's voices are loud and clear, but background conversations are still readily apparent. The low hums are fully removed, but the continuous typing is still audible, particularly with the female caller.
Credit: Matt Lighthart
Our simulated buzzing office space has many voices in the background, prominent clacky keyboards, clicky mice, and a low-frequency fan hum.
Voices from broad frequency ranges are relayed with great clarity, though there is some slight distortion.
Credit: Matt Lighthart
From our noise-insulated audio studio, we hear the true baseline voice quality.
We validate our simulated calls with real-life phone calls in diverse settings.
Credit: Matt Lighthart
Simulated calls allow for controlled, side-by-side assessments, but testing call quality with real-life phone calls is equally essential. We made phone calls with male and female speakers from a quiet conference room. The SonoFlow performed well, but the clarity wasn't as impressive as our simulated baseline tests. A slight hissing sound at the end and beginning of some words resulted in a somewhat grainy quality, but not so much that callers were challenging to understand.
This stylish, high-performance, yet low-cost headset is hard to pass up. Plus, with every purchase, 1More plants one mangrove tree in Madagascar in association with Eden Reforestation Projects.
Credit: Matt Lighthart
Should You Buy the 1More SonoFlow?
The SonoFlow is best for budget shoppers seeking quality sound, noise cancellation, and all-day comfort. Some premium models outperform it, but you'll have to shell out more cash to reap those benefits. When considering competitors at this price, it is the best and performs well. However, if you plan to swap connections between several Bluetooth devices, it might be best to look elsewhere.
What Other Wireless Headphones Should You Consider?
For a more seamless multipoint connection on a budget, consider the Soundcore Space One. You sacrifice call quality and battery life, but the tradeoff could be worth it depending on your goals. The Space One is best for bassheads who enjoy thumpy Hip-Hop or EDM tracks. Last, if you can't snag the SonoFlow at a discounted price, the Tozo HT2 is an excellent ultra-budget option. The noise cancellation and call quality aren't as great as the SonoFlow, but if these metrics don't matter to you, then the HT2 delivers at half the cost.
Side-by-Side Comparison
Compare 1More SonoFlow versus top competing products:
—Genaveve Bradshaw, Rachael Lamore, and Lissette Velasquez
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