I reviewed Earfun's new cheap open earbuds and sadly, they come up short in a flooded market

Earfun OpenJump: Two minute review

Now that open-ear headphones have evolved from a simple fad to a fully-fledged new kind of headphone (and a hugely competitive one, at that), two rough groups are emerging. On one hand you've got the open-ears designed for fitness use, offering long battery lives and hardy builds so you can run and cycle around traffic; on the other you've got lifestyle open-ears that provide decent music and some useful additional features.

The new Earfun OpenJump seem to want to straddle that divide, landing loosely in the second camp, but offering features which will appeal to the first. Unfortunately, poor timing has hampered what could have been a warm reception.

I associate Earfun with making cheap and cheerful audio tech, but the new OpenJump cost roughly the same as, and came out at the same time as, the Huawei FreeArc. These rival buds trump the Earfuns in myriad ways, with another contemporary (the Honor Earbuds Open) also eclipsing the OpenJump. So it's hard to recommend Earfun's proposition given that you can easily buy those alternatives – and I think, depending on your priorities, you should (although that's a different piece, isn't it? This is about Earfun).

But forgetting its rivals for a second, how do the Earfun OpenJump hold up? Well, they're... decent, but I don't think they'll be remembered for ushering in the new age of open earbuds as much as their H-branded rivals.

The buds are fairly lightweight and comfortable to wear, though some design issues made the fit and gesture controls a little unreliable. There's a decent feature set, particularly with a long-lasting battery life and an in-depth equalizer, and this is almost certainly where the OpenJump stands out.

Unfortunately, the audio quality just isn't there, and I mean that despite some bass tech from Earfun plus the aforementioned equalization options. Until very recently, you couldn't expect top-notch audio from such a design. But times have changed, and although the OpenJump are decent, that isn't quite good enough any more, even for this money.

Something to bear in mind: already in my testing period, Earfun has reduced the OpenJump by a noticeable margin. So there's a good chance that you can find these buds for a significant discount over the price listed below, firmly placing these into cheap earbuds territory. If that's the case, you can ignore a healthy chunk of my criticism here, since you'll be picking up a useful bargain. But at retail price, perhaps it's worth waiting for these to come down.

I really didn't mind using the OpenJump through the testing period, and I see myself continuing to use them until my next pair of open-ears come in. Nothing about them offends or annoys, but also, nothing delights or wows. And in the end, a tech review is meant to be an appraisal of which option is most worthy of your hard-earned cash. It's just too hard to point to the OpenJump as being that, given the competitive state of the market right now.

Earfun OpenJump review: Specifications

Earfun OpenJump review: Price and availability

• Announced in February 2025
• Costs $79.99 / £99.99 / AU$149.99
• Price is variable

The Earfun OpenJump was announced and released in February 2025, ready for everyone who put ‘exercise more’ on their list of New Year’s Resolutions (but didn’t start straight away, for whatever reason).

You can buy the earbuds for $79.99 / £99.99 / AU$149.99 – Earfun’s website has them listed as costing more in certain regions (£129.99 in the UK, for example), and the prices I’m going by are the RRP on Amazon.

In an odd break from Earfun’s modus operandi, that means that these are priced in the mid-range of the open earbuds market, not at the super-cheap cutting edge of it. At that price they’re the same price as the Huawei FreeArc, and there are a fair few open-ear options on Amazon for less – though don’t expect reliability and quality if you don't pay for it.

It’s worth noting that, unlike competitors, Earfun’s open-ear buds are already subject to price cuts and discounts. I found them at $20 off in the US and £40 off in the UK, just one month after their release. So it seems money-saving deals come thick and fast on these buds, however it wouldn't be fair for me to treat these prices as the default, since you may not be so lucky.

Earfun OpenJump review: Design

• Cheap-feeling plastic charging case
• IPX7-protected buds
• Slightly unreliable fit and gestures

From a distance, the Earfun OpenJump’s case looks like most other open-ear buds’: a medium-sized clamshell. And that’s certainly true, but when you get up close and get the thing in your hand, you realise how cheap the plastic material feels. It didn’t feel very robust either, and I’d be curious to see how durable the case is over a longer amount of time. Even over a relatively short testing time of two weeks, it picked up a few scratches.

Of course, the case is simply for holding and charging the buds. It does that, with a USB-C port for powering up and an indicator LED on the front. On to the buds themselves then, and these look how you'd expect for open-ear designs: they have a bud which is held just over your ear by a sport loop, with a counterweight (and a very little battery pack) tucked behind your ear.

They mostly fit well, and I went on several runs and workouts without issue, but now and then there was slight wobble and which made me worry that they'd fly off at any moment. This was nowhere near as bad as with some other rivals I've tested, mind you, but I've also used other buds without issue.

The buds have an IPX7 rating, meaning that they're protected from immersion in water up to a depth of a meter for up to thirty minutes. Given that the new athletically-minded Beats Powerbeats Pro 2 (although these are in-ear, rather than open-ear) only list a splash-proof IPX4 rating, it's good to see that the Earfuns will handle a puddle drop and survive.

Both buds support gesture controls by tapping once, twice, thrice or tapping and holding. They picked up my taps reliably, but the angle of the sensor meant I kept whacking my ear antihelix when trying to tap them. In a telling move, I soon relied on my phone or smartwatch for music control instead of these sensors.

Unlike some rivals, there's only one color option for the Earfun OpenJump: black. They weigh 8g each so they're pretty light, and they never felt a burden to wear.

• Design score: 3.5/5

Earfun OpenJump review: Features

• Pairing issues
• Versatile EQ
• Long-lasting battery

I had some troubles during my initial pairing with the Earfun OpenJump, in which my phone wouldn't find the buds it'd paired to, and throughout the testing process the Earfun App listed a profile for phantom OpenJumps which were simply a leftover from the first time I had tried to connect. After a while I got them to connect, and didn't have problems after that, but it's worth bearing in mind. I test earbuds constantly, and I rarely have these issues.

Talking of the Earfun app: it's worth downloading, because it brings a plethora of extras. These include various modes for gaming or streaming movies, the ability to customize touch controls and, most importantly, an equalizer.

Earfun fans will know that the company offers a fairly robust (possibly to a fault) equalizer. There are countless presets to pick from plus a 10-band equalizer and also a listening test to provide a custom sound profile.

A slight issue with the latter is that, like most other companies' versions, it requires you to listen to a sound until it fades from your hearing... all well and good except that these are open-ears. So by their very design, it's especially hard to tell when audio is soft, or when the sounds of the world are simply creeping in (unless you own a hermetically sealed subterranean bunker in which to conduct these tests).

The OpenJumps have some of the best battery life of any open earbuds that weren't made by OpenRock. The buds themselves will last for 11 hours according to Earfun, and my testing backed that up. The case itself offers a total of 42 hours of listening time before it needs to be charged and if anything, I'd say that my actual listening time seemed to surpass that slightly, up to nearly 44 hours, meaning stamina is one area where these buds are genuinely competitive.

• Features score: 4/5

Earfun OpenJump review: Sound performance

• 14.2mm driver
• Music is slightly lacking in energy and detail
• Bass redemption tech

The Earfun OpenJump came out at a poor time, released simultaneously alongside the two best-sounding open-ear headphones I've ever used (more on that in the Competition section later), so it was always going to struggle in the sound department. And they certainly do, though not to the extent I was expecting.

That's not a huge surprise given that the open-ear form factor naturally means that the drivers are hanging over your ears with no seal. This form factor still isn't for audiophiles and the OpenJump don't change that.

You're getting a fairly forward sound profile with the OpenJump, but music lacks energy or detail. There's little separation between instruments or any expanse to the soundstage, and it doesn't help that the treble lacks sparkle in a congested, compressed-sounding mix.

I had hoped that the Theater mode, which is meant to improve the soundstage, would help. While it did seem to spread out the music a little more, it also sadly made the overall performance quite tinny.

Earfun has added a feature which it's cryptically calling 'BassSurge Bass' (I wonder what that does?) and this goes some way into providing a little kick in certain songs, but it's hardly a surge of juicy and impactful low-end frequencies. You could argue that bass-heads should still look for over- or in-ears rather than an open-fit design, but other rivals have managed to deliver better bass, despite the inherent shortfalls of a design that doesn't fully cover or go into your ear canal.

The other bit of tech of note is a 14.2mm driver, which is a fairly standard piece of tech for this kind of bud, and I remember the Nothing Ear (open) had the same.

The OpenJump have quite a lot of noise bleed – again an inevitable part of open-ears given the design, but it was a little more pronounced here than on some other buds I've tested.

• Sound performance score: 3/5

Earfun OpenJump review: Value

I'm going to use the Amazon price to judge the Earfun OpenJump's value rating, because it seems that the buds are readily accessibly at that lower cost.

These are reasonably affordable open-ears for this price, undercutting some more expensive rivals though not quite offering the refined design, or sonic prowess.

They're certainly not alone at this price point though...

• Value score: 4/5

Earfun OpenJump review: scorecard

Earfun OpenJump: Should you buy them?

Buy them if...

Don't buy them if...

Also consider

Huawei FreeArc

For the same price as the OpenJump you can buy these buds which sound great, have a sturdy fit and come in a more premium-feeling case. They struggle compared to the OpenJump in the battery life department and the app is a chore to download, but overall, I prefer the Huawei option.

Read our full Huawei FreeArc review

Honor Open Earbuds

These slightly-pricier models have an incredibly slim carry case, a design that's most similar to the Earfuns, and a very good audio offering. Again, the battery life doesn't match up, but for sound and secure fit, Honor wins the race.

Read our full Honor Open Earbuds review

How I tested

I tested the Earfun OpenJump for two weeks prior to writing this review, and before them I'd tested two similarly-priced contemporaries: the Honor Earbuds Open and the Huawei FreeArc.

I used the earbuds paired to my Realme phone for listening to music and podcasts, and the testing took place when I was at home, at the office, cycling through the city, going on runs and working out at the gym.

I've been reviewing gadgets for TechRadar since early 2019 and have used a huge range of tech. This includes other open-ear buds as well as audio offerings from Earfun.

Read more about how we test

• First reviewed: April 2025