EarFun Air Pro 4 Review

Design and Comfort

The Air Pro 4 is a stem-style earbud with glossy plastic housings and a compact, matte charging case that measures about 62 × 47 × 29 mm. Each bud weighs roughly 5 g, and reviewers describe it as easy to forget in your ears. SoundGuys scored comfort 8.5 out of 10, and Tom's Guide says its reviewer wore them for eight hours and even slept in them without discomfort. Build quality gets good marks as well: SoundGuys scored durability 8.3, and Root-Nation called the construction excellent.

Fit is the variable to watch. Some owners with smaller ears say the buds still feel loose with the smallest tips, and one Amazon buyer returned them after 15 to 20 minutes of pain. A Head-Fi reviewer reported ear fullness over long wear, and the case is described as slippery. Touch controls are another sore spot. Owners call them touchy, SoundGuys found the default single tap (which changes volume) annoying, and TechRadar noticed a delay between a press and the action. The controls can be remapped in the app, and one owner simply turns them off and relies on in-ear detection.

Sound Quality

The 10 mm composite-diaphragm driver is tuned to a roughly neutral, mildly bass-forward signature. SoundGuys' measurements show the response closely follows its house curve apart from a dip around 8 to 11 kHz, so cymbals and other upper-treble detail can sound quiet. It also scored the Air Pro 4 well on HEAD acoustics' MDAQS test, at 4.8 overall. TechRadar was less impressed, describing relatively meaty bass, set-back mids that can peak or turn mushy on hi-hats and acoustic guitar, and a shortage of treble, and it scored sound 3.5 out of 5. HiFi Oasis landed in between, finding controlled bass, clear mids and slightly polite treble.

The EarFun Audio app helps here. It offers 30 EQ presets, a 10-band custom EQ and a hearing-test profile, so a small treble lift is easy to apply. One quirk from SoundGuys: frequencies below 500 Hz are louder with ANC on than off, so the sound shifts a little when you change modes. Tom's Guide noted some sound bleed at high volume and no spatial audio.

Codec support is a highlight at this price. EarFun lists aptX Adaptive (including aptX Lossless), LDAC, SBC and LC3, and reviewers also report AAC for iPhone users. EarFun does not publish a frequency-response range.

Noise Cancellation

The ANC is good rather than great. SoundGuys scored it 7.5 out of 10, ahead of about a third of the earbuds it has tested, and measured 10 to 20 dB of reduction on top of passive isolation. EarFun's claim of up to 50 dB has not been independently measured. Tom's Guide found it effective indoors and better outdoors, while one Amazon owner said it was adequate but not as strong as a Jabra Elite 7. Loud'n'Wireless found the Soundcore Liberty 4 NC more powerful on paper, but felt the EarFun sealed better.

There are five ANC modes (strong, balanced, wind, AI environment adaptive and AI ear adaptive), and TechRadar found them confusing, with differences that are hard to hear. Two ambient modes are included: Default boosts outside sound, and Natural sounds closer to bare ears.

Call quality deserves a mention here. The six microphones pick up voices accurately in quiet rooms, and Root-Nation rated indoor calls excellent. In noisy places they struggle, and only about 49 percent of SoundGuys' listener poll rated them good or perfect.

Battery and Connectivity

Battery life is a strength on paper. EarFun rates the buds at up to 11 hours with ANC off and 7.5 hours with it on, with the case extending that to 52 and 35 hours. Turning on LDAC cuts those figures, to 6 hours in the buds and 28 hours total with ANC on. Independent runtime tests came in at around 8 hours, below the 11-hour claim. A 10-minute fast charge gives about 2 hours, and the case charges over USB-C or Qi wireless.

Bluetooth 5.4 and two-device multipoint are supported, and LE Audio and Auracast are listed as available only via a future firmware update. EarFun claims under 50 ms latency in low-latency mode, but I found no independent measurement. One Head-Fi reviewer rated it 3.6 out of 5 and said it is not suited to first-person shooters or rhythm games. Some owners also report audio lag when the buds are connected to both a phone and a computer. Treat it as fine for video and casual games.

Who Should Buy the Air Pro 4

• Budget shoppers who want strong features and long battery life for well under $100.
• Android users who can take advantage of LDAC or aptX Adaptive.
• Tinkerers who like a deep EQ and app controls.
• People who work from a quiet home or office, where the mics perform best.

If you want stronger noise cancelling and better calls, the Apple AirPods Pro 3 and Samsung Galaxy Buds 4 Pro are worth the extra money, and the Sony WF-1000XM6 is the pick for top-tier ANC. If you prefer a larger, cheaper over-ear design, look at the 1More SonoFlow. Among direct rivals, the Soundcore Liberty 4 NC costs about the same and offers spatial audio but fewer codecs. EarFun's own Air Pro 4+ is the upgrade to check if it is similarly priced.

Final Verdict

The EarFun Air Pro 4 is an easy recommendation at its typical street price of roughly $55 to $65. Independent measurements show a balanced sound, the codec list is unusually good for the money, and the battery rating and app are generous. The compromises are real: ANC that falls short of the best earbuds, weak microphones in noise, sensitive touch controls and a fit that does not suit every ear. Buy it for the value, and expect good rather than class-leading performance.