EarFun Air Pro 4 Review

While these earbuds don't excel in any one area, they offer features normally reserved for far more expensive offerings. They sound pretty good too. An effective seal and active noise cancellation work together to turn the volume down on the world around you, while an effective transparency mode allows you to easily chat with friends or colleagues. They don't have the best call quality, but calls are intelligible, making these a good all-around option for budget-minded shoppers.

Sound Quality

While we enjoy listening to our favorite tunes with these earbuds and happily recommend them for the price, they don't deliver the most sophisticated sonic experience. The soundstage is solid, the bass is rich, and the mids sound realistic. But, while the treble range is bright, it lacks power and sparkle. In the end, these earbuds excel at delivering clean, precise separations between instruments and vocals, but fail to dazzle. Still, whether it's country rock ("Do Me Wrong" by the Red Clay Strays) to Americana ("Dust" by Dylan LeBlanc), classic pop ("Will You Still Love Me Tomorrow?" by Carole King), they consistently polish some of our favorite songs to a soft shine.

These buds build a decent soundstage, earning above-average scores. While they don't create a big, broad, immersive sonic experience, they do give your favorite songs room to breathe. The separation between individual instruments and vocals is clear enough to place them in space and time. So, while the pianist might be tickling the ivories to your right, you can tell when the singer takes center stage. Higher scoring earbuds are more precise, though, and while the stage is reasonably wide, it has low ceilings. The buds don't give your music enough height to let it soar.

The frequency mix is pleasantly balanced, with the bass range delivering a deep, rich sound that avoids sounding bloated or overpowering the upper ranges. The lower notes are generally clear and accurate, with only occasional hints of muddiness. While the bass lacks the playful, indulgent bounce of some models, it more than makes up for it with impressive precision and control

The midtones are particularly enjoyable, with clean and realistically textured vocals that maintain a natural timbre. Instruments sound robust and well-spaced, and never feel muddled in a busy mix. In Beyoncé's dreamy track “XO”, for instance, a high harmony at the 1:09 mark distinctly swirls in from the right without drowning out the emotional lead vocals.

The high, treble notes are clean, bright, and lively, but they can sound distant and less precise than I'd like. At times, they almost seem to lag in the mix, seemingly a step behind the lower notes, and lacking the drive they need to stand out. Using the app's adjustable EQ could boost the Air Pro 4 buds' performance if you prefer a more sparkling top end.

Still, the treble and mids work well together. In “Early Mornings” by Koshun Nakao, the spacious stage highlights subtle details throughout this track — the faint rustle of a wooden bench at 0:24 or soft key depressions at 0:48 — over the reflective piano solo wandering by. The piano sounds warm, gentle, and clearly positioned in the mid-distance. While it could benefit from a touch more presence, these earbuds translate the sound nicely.

These buds have the power! They are capable of getting just as loud as you'd like, and there's no sign of distortion (manifesting as a crackling or fuzziness) even at the highest levels.

To add rigor to our subjective listening tests, we enlisted our Brüel & Kjaer Type 5128 Head Simulator (aka Darwin) to map the Air Po 4 earbuds' frequency response. Compared to our GearLab House Curve, the Air Pro 4 earbuds closely match the upper mid and lower treble ranges while toning down the lower mid, upper bass, and mid treble frequencies.

User Experience

Easy enough to wear with a secure fit and a slightly over-engineered but useful app, the EarFun Air Pro 4 earbuds work well. We had a group of coworkers try out these earbuds to weigh in on their comfort and fit, and the feedback was favorable. Our committed testing crew also spent full workdays wearing each pair, putting them to the test during daily commutes and when playing outside or at the gym.

Comfort

These earbuds strike a good balance between comfort and practicality. Five ear tip options allow you to customize their lightweight, AirPod-esque fit. And the streamlined design doesn't extend too deeply into the ear canal. The long stem with touch controls adds convenience with minimal weight. While they aren't so comfortable that you forget they're there, they're easy enough to wear for around three hours at a time, though they did occasionally create pressure points.

EarFun Air Pro 4 Apple AirPods Pro 2

Stability

The EarFun Air Pro 4 are pretty dang stable. Five ear tip size options make it easy to get a solid seal and a reliable fit. Whether climbing at the gym, heading out for a run, or even grabbing a quick nap at the end of a long day, these buds stay put.

In fact, they're most at risk when we're handling them with our hands. The slick, hard plastic exterior can be tricky to grip and scratches easily, but the long stem helps maintain a hold. Plus, with an IPX5 rating, they're protected from splashes, so you don't have to worry about a little sweat.

Adjustability and Tunability

These earbuds work with Apple and Android devices, and EarFun offers a robust app with almost an overwhelming number of options. There is a game mode to reduce lag between audio and visuals, manual EQ adjustments, around 30 frequency curve presets, and a wind-specific noise canceling setting, among others. With so many options and a subpar interface, the app can be difficult to navigate.

The app also supports dual device connection, allowing you to easily switch between two paired devices, making pairing is impressively easy. The earbuds reliably remember previous pairings even after switching devices. Additionally, a “find my earbuds” feature plays a chime from the earbuds themselves if you drop one or both, though it won't help you locate the case if the entire kit goes missing.

The case features bright interior lights, one per bud, making it easy to grab them in low-light settings. The LE (low energy) Audio support is another standout feature, representing the next generation of Bluetooth connectivity. It enhances audio quality, connection stability, and battery life. It's a very impressive feature at this price point. Overall, the EarFun Air Pro 4 earbuds pack a ton of features into an affordable package, though the sheer number of settings can feel overwhelming.

Noise Cancellation

The EarFun Air Pro 4 earbuds come equipped with noise cancellation (ANC), but they tend to dull noises rather than blocking them out. Everyday sounds, like typing on a keyboard, setting down a kettle, or closing a trash can lid, are audible but muted. Some sharp, high-pitched noises, like the clink of a water glass or a dog barking, come through more clearly.

That's because earbuds dull sounds in two ways. The first is known as passive noise isolation, which just means that the buds physically block some sounds from reaching your ears. This works particularly well with high-frequency sounds. The Air Pro 4 buds are good at this. Just putting these earbuds in your ears does a lot to quiet a noisy cafe, as you can hear in the video below.

The second is ANC, which uses microphones and processing to cancel out incoming sound, and works particularly well for lower tones. When lab testers switch the ANC on in the test, it quiets the low hum of the room, while some higher-pitched sounds of glasses and plates clinking into one another still cuts through. That performance is good enough to make it among the best at this price point and ranks in the middle of the pack overall, as you can see in the chart below.

We ranked each earbud's ANC and passive isolation using our experience and by testing each earbud in Darwin's ears using SoundCheck software. Darwin's results are in the chart below, showing how much sound the earbuds block in each frequency range.

Across most frequencies, the ANC reduces volume levels by 15 to 30 decibels (dB), with a notable peak around 10,000 Hz in the treble range, where it cuts noise by up to 40 decibels. That's not enough to top the best performers in our test, but it's still pretty impressive for the price.

These earbuds also have an impressive transparency mode, though they call it Ambient Sound. This feature records your surroundings and plays them through the internal microphones, helping offset the natural isolation from the earbud seal. While your surroundings can sound slightly unnatural or distorted at times, it still makes it easy to follow conversations and stay aware of people or traffic moving around you.

On the downside, wind can sound jarring in transparency mode, like tearing paper, so I tend to use it indoors. Interestingly, these earbuds do have a wind specific noise cancellation mode, which I was excited to test, but honestly, I couldn't tell much difference between that and the regular ANC setting.

Battery Life

In our tests, we kept the music playing at 75% volume until they finally gave out. Offering a respectable battery life of around 7 hours and 48 minutes on a single charge with the ANC on, the EarFun Air Pro 4 earbuds work well for most use cases. While this falls short of the manufacturer's claim of 11 hours, it still provides enough listening time for most applications.

The charging case holds up to four full charges, giving you a total of about 31 hours of playtime before plugging in. A quick charge feature provides 2 hours of playback from just 10 minutes of charging, making it easy to top up on the go. The case also supports wireless charging for an extra layer of convenience. While the battery life isn't the best in the test by far, it's well-suited to most users' needs.

Call Quality

One of the biggest downsides of the EarFun Air Pro 4 earbuds is their call quality. Voices sound grainy, and you can hear almost everything in the background. To back up our real-world impressions, we ran lab tests with Darwin, playing recordings of male and female voices through the speaker in Darwin's mouth, then captured how they sounded through the earbuds. The resulting audio files are included below.

They performed best in our baseline call quality test, with no background noise. Still, they only scored slightly above average. The sound is grainy with a slight echo that gives it a hollow feel. That said, it's still loud and clear enough to understand without much effort.

When you move into an office environment, your voice still comes through pretty clearly, but so does everything else. Background sounds aren't masked or blocked at all, so it all blends together, making it harder to hear.

While both the female and male voices are understandable, both are challenged by the intense background noise from the subway station. The effect is loud and chaotic, making it hard to focus on what is said. The competing sounds also seem to exaggerate the grainy texture in the voices, adding to the disorienting feel.

Should You Buy the Bose QuietComfort Ultra?

The EarFun Air Pro 4 earbuds are a great fit for budget-conscious listeners who want a taste of premium features without paying top dollar. I think high school and college students will appreciate this value proposition. They're ideal for casual music lovers, indoor commutes, and office dwellers who want solid sound quality, effective (if not top-tier) noise cancellation, and lots of customization options in a feature-packed app. If you want decent performance across the board, with perks like a strong transparency mode, wireless charging, and multipoint pairing, these earbuds are worth a serious look.

What Other Earbuds Should You Consider?

If you're willing to spend more, but still want to maximize value, check out the Nothing Ear Wireless earbuds. They sound a bit better, offer a more polished user experience, and have better call quality. If you need top-tier ANC, you'll have to spend quite a bit more to step up to models like the Google Pixel Buds Pro 2 or Samsung Galaxy Buds3 Pro for Android users or the Apple AirPods Pro 2 for Apple users. On the other hand, if you'd like to spend less and don't mind dealing with wires, the Linsoul KZ ZSN Pro X and UliX Rider both deliver slightly better sound quality at a fraction of the price.