What to know first
- Dual-driver system (FeatherBA balanced armature plus 10mm dynamic driver) replaces the single dynamic driver in the standard Air Pro 4
- Adaptive ANC rated up to 50dB, with automatic and three manual noise cancellation levels
- 12 hours of earbud-only playback, 54 hours total with the case, and 10 minutes of charging returns 3 hours of listening
- Qualcomm QCC3091 chip supports aptX Lossless and LDAC for listeners with compatible hi-res sources
- Built-in AI translation feature through the EarFun Audio app (requires updated app version)
- IP55 rated for splash and dust resistance, not full submersion
A flagship built to replace last year's flagship
EarFun didn't wait long to follow up the Air Pro 4. The Air Pro 4+ arrived at CES in January 2025 as the new top of the lineup, with wider availability starting in May 2025, and it now sits above the standard Air Pro 4 rather than replacing it outright.
The distinction matters because both models share a lot of DNA. Same Qualcomm QCC3091 chip, same Bluetooth 6.0 connection, same 50dB adaptive ANC ceiling. What separates them is the driver setup: the Plus adds a FeatherBA balanced armature alongside the 10mm dynamic driver, a hybrid arrangement EarFun says sharpens treble detail without giving up the low end.
It's not chasing AirPods Pro on price. It's chasing them on features, at less than half the cost.
The driver upgrade nobody but audio nerds will notice, and everyone will hear
A single dynamic driver is efficient but tends to blur separation between instruments in busier mixes. Adding a balanced armature is the same trick higher-end in-ear monitors have used for years: let one driver handle bass and mids while a smaller, faster component handles treble detail. EarFun's version, paired with what it calls Nano Side-Fitted Acoustic Architecture, is meant to keep that detail without a bulkier earbud shell.
Codec support backs up the hardware. The Air Pro 4+ carries aptX Lossless and LDAC alongside AAC and SBC, plus Qualcomm Snapdragon Sound certification. None of that matters if your phone doesn't support those codecs, but for Android listeners with a compatible device, it opens the door to less compressed wireless audio than most budget earbuds even attempt.
The AI translation feature is the one genuinely new trick here, absent from the standard Air Pro 4. It runs through the EarFun Audio app and requires updated app versions to function.
What a long battery actually changes
Twelve hours per charge means most people can leave the case at home for a full workday and still have battery left. The case adds another 42 hours on top of that, so a single charge of the case can realistically last a week or more of normal commuting use before it needs power itself.
Fast charging closes the gap on the mornings you forget to charge overnight. Ten minutes on the charger buys three hours of playback, enough to get through a morning commute without panic. Combine that with wireless charging compatibility and the case becomes something you top off on a pad rather than something you plug in and wait for.
In-ear detection and Google Fast Pair round out the daily mechanics. Pulling one earbud out pauses playback automatically, and pairing to an Android phone for the first time should be close to instant. IP55 water and dust resistance covers sweat and light rain, though it's not the rating you want for swimming or a hard downpour.
Where the Plus doesn't quite pull ahead
The most honest caveat here is the existence of the standard Air Pro 4 sitting right next to it in EarFun's own catalog. That model already offers 50dB adaptive ANC, a 52-hour total battery figure, and the same Qualcomm chip. If the second driver and AI translation don't interest you, the standard model covers most of the same ground for less money.
Noise cancellation claims deserve the usual skepticism. A 50dB rating describes steady, predictable noise like airplane engines or HVAC hum. Nearby conversation, a crying kid, or a barista's espresso machine will still leak through more than a marketing spec suggests, regardless of which Air Pro model you pick.
IP55 resistance is fine for a sweaty run or getting caught in light rain, but it's not a rating built for a swim or a shower. If you need earbuds for the pool, this isn't the right earbud for that job no matter how good the sound is on land.
The specs that matter
Two drivers dividing the frequency range typically means clearer treble detail without sacrificing bass weight, an upgrade over the single-driver Air Pro 4.
The adaptive system reads your environment and adjusts automatically, but the 50dB figure applies best to steady noise like engines, not sudden or human sounds.
A single charge should cover a full workday, and the case extends that to roughly a week of typical daily use before it needs its own recharge.
Useful for the mornings you forget to charge overnight, this turns a nearly dead case into enough juice for a commute.
Broad codec support means better odds of a high-quality wireless connection on Android phones that support these formats, though iPhone users won't see the same benefit.
Covers sweat and splashes but not submersion, so these are workout-friendly but not swim-friendly.
A feature not found on the standard Air Pro 4, useful mainly for travelers, and dependent on keeping the companion app updated.
Who this product fits
The daily commuter tired of charging earbuds every night
Twelve hours per charge covers a full workday of transit and office noise, and the case's 42 extra hours mean you can go most of a week without plugging in the case itself.
The Android listener chasing better wireless sound
With aptX Lossless and LDAC support alongside Snapdragon Sound certification, a compatible Android phone can push a noticeably less compressed signal than AAC alone, assuming your streaming source cooperates.
The frequent traveler juggling languages
Built-in AI translation through the EarFun Audio app removes the need for a separate app or device when navigating a menu or a quick conversation abroad, provided you keep the app updated.
The upgrader deciding between this and the standard Air Pro 4
If clearer treble detail and AI translation don't matter to you, the standard Air Pro 4 offers nearly identical ANC and battery life for less money, making the Plus model the pick only for those who want the newer driver setup.
What else to compare
A few other options are worth weighing depending on what you value most.
EarFun Air Pro 4+ FAQ
Is the EarFun Air Pro 4+ better than the EarFun Air Pro 4?
It adds a balanced armature driver for clearer treble detail and includes AI translation, features the standard Air Pro 4 lacks. Noise cancellation and battery life are close enough between the two that the Plus is mainly worth it if those two additions matter to you.
Does the EarFun Air Pro 4+ work with iPhone?
It pairs over standard Bluetooth with any phone, but codec advantages like aptX Lossless and LDAC only apply on Android devices that support them. IPhone users will connect via AAC instead.
How long does the battery actually last with ANC turned on?
EarFun's stated figures don't break out ANC-on runtime separately from the general 12-hour figure, so treat that number as a best case. Noise cancellation, volume, and call use will all pull it down somewhat.
Can I swim or shower with these earbuds?
No. The IP55 rating covers sweat, dust, and light splashes, not submersion, so swimming or showering isn't recommended.
Do I need the EarFun Audio app to use these earbuds?
Basic playback and ANC work without it, but sound personalization and the AI translation feature both require the app, and translation specifically needs an updated version installed.
Worth the extra driver, or should you save for the standard model?
Judged on its own, the Air Pro 4+ delivers a genuinely rare combination at its price: a hybrid driver setup, adaptive ANC that covers steady noise well, and battery life that outlasts most earbuds costing twice as much. The AI translation feature is a nice bonus for travelers, even if it won't be a daily habit for most buyers.
The harder question is whether it beats its own sibling. If treble clarity and translation aren't priorities, the standard Air Pro 4 covers nearly identical ANC and battery ground for less. But for anyone who wants EarFun's newest tuning and doesn't mind paying a little more for it, the Air Pro 4+ earns its spot at the top of the lineup.