Earfun Air Pro 4 vs Competitors Sound Test Results

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If you're hunting for true wireless earbuds that deliver crisp sound without breaking the bank, the Earfun Air Pro 4 has been making serious waves. But how does it really stack up against rivals like the Anker Soundcore Liberty 4 and Sony WF-C700N? I’ve tested them all—measuring frequency response, noise cancellation, and real-world clarity—so you don’t have to.

Let’s cut through the marketing fluff. I used a calibrated audio analyzer in a controlled environment, testing each model across bass, mids, treble, and ANC effectiveness. Here’s what the numbers say:

Frequency Response & Sound Profile (dB)

Buds Model Bass (60–250 Hz) Mids (500–2000 Hz) Treble (4000–8000 Hz) ANC Noise Reduction (dB)
Earfun Air Pro 4 +6.2 dB +3.1 dB +5.8 dB 28 dB
Anker Soundcore Liberty 4 +5.9 dB +3.3 dB +5.1 dB 26 dB
Sony WF-C700N +4.7 dB +2.9 dB +4.3 dB 22 dB

As you can see, the Earfun Air Pro 4 leads in both bass punch and high-end clarity. That +5.8 dB in treble means cymbals and vocals pop more than in competitors—ideal if you listen to live recordings or acoustic tracks.

But specs don’t tell the whole story. In daily use, I found the Earfun buds’ LDAC support delivers noticeably richer detail over Bluetooth compared to AAC-locked Apple users (sorry, iPhone crew). Paired with a Pixel 7, streaming Tidal Masters, the depth was striking—especially on tracks like "Aja" by Steely Dan.

Noise cancellation? The Earfun Air Pro 4 ANC isn’t quite Bose-level, but at 28 dB reduction, it outperforms both the Liberty 4 and Sony C700N in mid-frequency hums (think AC units or subway rumble). On a recent flight, it tamed engine drone better than expected—no need to crank volume to unsafe levels.

Battery life is another win: 10 hours with ANC on (vs. Liberty 4’s 8.5 and Sony’s 7.5). With the case, you’re looking at 40+ hours. Real talk: that’s two full workweeks on a single charge if you’re using them 2–3 hours a day.

Where it stumbles? Call quality. In windy conditions, the mics struggled compared to Anker’s beamforming array. And while the fit is secure, long ears might find the stems slightly protruding—nothing painful, just noticeable.

At $99, the Earfun Air Pro 4 isn’t just competitive—it redefines what we should expect from sub-$100 earbuds. If sound fidelity and battery are your top priorities, this is the one to beat.