Description
EarFun Air: an IPX7 rated true wireless set built around workouts
The EarFun Air is a true wireless earbud aimed squarely at exercise. The listing gives an IPX7 water resistance rating, 6 millimeter dynamic drivers, a sensitivity of 100 dB, a frequency range of 20 Hz to 20,000 Hz, Bluetooth 5.0 with a 10 meter range and touch controls. Battery life is stated as 7 hours per earbud, with the product name quoting 35 hours in total including the charging case. Charging takes 1.5 hours for the earbuds and 2 hours for the case, over USB-C.
The IPX7 rating is the specification that defines this product. IPX7 describes resistance to immersion in water to one meter for thirty minutes, which is a far stronger claim than the sweat resistance ratings common in this category. For a runner in heavy rain, a gym user who sweats hard, or anyone who has destroyed earbuds by leaving them in a pocket through a wash cycle, that difference is the whole reason to choose this set. Note that the X in IPX7 means dust resistance was not rated, so the rating covers water only.
Battery figures that hold together
Seven hours per earbud is a strong figure and it is achievable here because there is no active noise cancellation drawing power. The listing gives the noise control as sound isolation, which is the passive kind produced by the ear tip sealing the canal. There is no cancellation circuitry in this product, and buyers should not confuse the call noise reduction described in the marketing with active cancellation of what the wearer hears; the two are different systems solving different problems.
Seven hours in the bud plus a case total of 35 hours means the case holds roughly four additional charges. In practice that translates to a week or more of gym sessions between case charges, which is the pattern most people actually use. USB-C charging is the right connector, and 1.5 hours to full is unremarkable but adequate.
Buyers who want active cancellation at a similar price should compare the Moondrop Space Travel, which adds it at the cost of much shorter runtime per bud, or the TOZO NC3, which takes a hybrid approach. The tradeoff between cancellation and battery life is the central decision in this part of the market.
Fit, drivers and controls
A 6 millimeter driver is small even by true wireless standards, and small drivers depend heavily on a good seal to produce low frequencies. The listing includes multiple ear tip sizes, and getting the right one is the single most effective thing a buyer can do to improve the sound. A poor seal removes bass entirely and also degrades the passive isolation that this set relies on in place of active cancellation.
Touch controls handle playback and calls. Touch surfaces are convenient but imprecise during exercise, particularly with wet or gloved fingers, and an accidental tap while adjusting a bud is a common annoyance. This is a general characteristic of the format rather than a fault specific to this product.
The rounded and ergonomic earpiece shape described in the listing sits inside the ear without an over ear hook. That is lighter and less obtrusive than a hooked design, but retention during high intensity movement depends entirely on the tip seal. Runners who have had earbuds work loose should consider hooked or open ear alternatives such as the Occiam T9 or a sport specific set like the Skullcandy Push Active.
Highlights
- IPX7 water resistance rating, covering immersion rather than only splashes.
- 7 hours per earbud with a quoted 35 hours total including the case.
- USB-C charging, at 1.5 hours for the earbuds and 2 hours for the case.
- 6 millimeter dynamic drivers with a stated sensitivity of 100 dB.
- Frequency range of 20 Hz to 20,000 Hz.
- Touch controls with multiple ear tip sizes supplied.
- Listed specifically for sports, exercise, running and calling.
Things To Consider
Bluetooth 5.0 is the oldest specification among current true wireless sets, and it is the one detail that dates this product. In practice the difference between 5.0 and 5.3 is small for audio, affecting connection stability and power efficiency more than sound, but buyers comparing on paper will notice it. There is no codec list published in the listing, so the supported codecs cannot be confirmed.
There is no active noise cancellation, and on a plane or a train that is a genuine limitation. Passive isolation from a well sealed tip reduces high frequency noise reasonably well and low frequency rumble poorly, which is the opposite of what travel demands.
The imported data contains its usual errors. Headphones Jack reads usb on a set with no jack at all, Theme reads Video Game for a product marketed for running, and a batteries field claims three nonstandard batteries, counting the two earbuds and the case. Item Weight of 1.73 ounces describes the packaged product rather than the earbuds. None of these change what the product does, but none should be quoted as specifications either.
Finally, water resistance is not permanent. IP ratings are measured on new products, and seals degrade with age, heat and repeated sweat exposure. An IPX7 set is far more likely to survive a soaking than an unrated one, but it should not be treated as an indefinite guarantee, and salt water in particular is harder on electronics than fresh water is.
Who it suits
The EarFun Air suits runners, gym users, cyclists and anyone whose earbuds regularly meet sweat or rain. The combination of an IPX7 rating and 7 hours per charge covers the realistic demands of exercise better than most sets at this level, and the absence of cancellation is what makes that battery figure possible.
It is the wrong purchase for frequent flyers, for open plan office workers who need cancellation, and for anyone who wants the newest Bluetooth specification and published codec support. Those buyers should compare the cancelling options in the earbud headphones category, or look at the open ear headphones category if awareness of traffic matters more than isolation during outdoor runs.
