- Comfortable open-ear fit
- Solid battery life
- Good sound for the price
- Lightweight and secure design
- Bass is limited
- Not ideal for noisy places
EarFun’s OpenJump punches well above its price, delivering a comfortable open-ear design with surprisingly balanced sound and dependable battery life. They’re lightweight, secure, and great for workouts or all-day wear. While the bass isn’t deep and noisy environments aren’t their strong suit, they remain one of the best budget open-ear picks right now.
Open-style earbuds are becoming more popular with runners and cyclists who want comfort and safety while staying aware of their surroundings.
Most audio brands now offer at least one open-ear option, and EarFun has decided to enter this market with their first product in this category: the EarFun OpenJump.
I’ve used these for a few days now—while running, cycling, during long editing sessions, and even for a quick nap—and EarFun has done a good job for their first try. They’re not flawless, but they nail the basics.
Also see: EarFun Air Pro 4+ Review
EarFun OpenJump – Specifications
| Features | Details |
|---|---|
| Design | Open-ear, lightweight with flexible ear hooks |
| Drivers | 14.2mm wool composite |
| Audio | Hi-Res Audio, BassSurge™, 3D sound |
| Microphones | 4 mics with AI noise reduction |
| Battery | Up to 11 hrs, 42 hrs with case |
| Waterproof | IPX7 + SweatShield |
| Connectivity | Bluetooth 5.3, Fast Pair, Multipoint |
| Latency | Under 50ms (Game Mode) |
| App Support | EQ & control customization |
Design & Comfort
The OpenJump uses the familiar open-ear formula: a driver housing resting just outside your ear canal, a flexible ear hook, and a rear battery pod sitting behind the ear.
What’s interesting is how close the speaker actually sits to the ear. EarFun angled it slightly inward, almost hugging the outside of the canal more than most open-ear buds I’ve tested.
It doesn’t sound like a big deal, but it changes the fit in a good way. The buds feel secure without needing a clamp-like hook, and once you start running, they simply stay put.
There’s nothing to fiddle with, nothing to tighten, and nothing bouncing around like cheaper open-ear attempts.
The hooks themselves are soft and flexible (though not adjustable like the hinge-style Soundcore AeroFit 2), and the whole earbud has a smooth silicone coating that never irritated my skin—not even after a sweaty run or hours of continuous wear.
At around 7.8g each, they’re light enough that I genuinely forgot I was wearing them a few times. I even kept them on during a shower by accident—don’t do that, but they survived.
Speaking of water, the buds are rated IPX7, which is considerably better than most open-style models in this price range. They handled rain, sweat, and humid weather without issue.
One more thing I noticed: the hooks never clashed with my sunglasses or my cycling helmet. If you’re someone who stacks gear on your ears, this matters more than you’d think.
The Charging Case
There’s no denying the charging case is chunkier than usual. It’s wider and thicker than a regular earbuds case, but after a week of use, I honestly didn’t mind. It fits into my running shorts and jacket pockets fine, and once the buds are in your ears, you’re not carrying the case anyway.
Inside, you get a pairing/reset button, a firm spring-loaded hinge, and everything feels surprisingly well-finished for something that costs under $80. EarFun even added wireless charging, which is a pleasant surprise at this price.
The size becomes easier to accept once you realize why it’s big: battery life is excellent.
Wireless Features & App
EarFun included Bluetooth 5.3, LDAC, SBC, AAC, multipoint pairing, single-earbud mode, and Google Fast Pair. Multipoint works smoothly—just note that it doesn’t work with LDAC, which is a standard limitation across the industry.
The companion app is surprisingly comprehensive. You can adjust the EQ using a 10-band grid, pick from several presets, set up a personal hearing profile, enable Game Mode, switch to Theater Mode for a virtual surround effect, rename the earbuds, tune the voice prompts, or ping the earbuds if you’ve misplaced them.
The app gives you more fine-tuning control than most open-earbuds offer, especially at this price.
Theater Mode does create a more spacious effect when watching movies, but it also thins out the bass and locks out the EQ, so I didn’t use it much outside of testing.
Controls
You can customize every touch gesture—single, double, triple, and long press—on either side. It’s far more flexible than the standard “preset and deal with it” approach most budget earbuds use. And if you hate touch panels, you can simply turn them off.
Accuracy is good once you get used to the fact that the touch panel faces slightly backward due to the inward angle of the driver housing. No wear detection here, though, so there’s no auto-pause when removing the buds.
Microphone Quality
The OpenJump uses four mics with AI noise reduction. In quiet rooms, voices sound acceptable but not studio-clean. In noisy environments, the background noise is reduced surprisingly well, though your voice does lose clarity.
I wouldn’t use these as my main earbuds for daily office calls, but for quick conversations while running or in the gym, they’re fine.
Sound Quality
Now, sound quality on open-earbuds is always tricky because there’s no seal. Bass will never match what in-ear buds can do, and that’s true here as well.
What EarFun went for instead is clarity. The midrange is pushed forward, which makes vocals incredibly clear. Podcasts and YouTube voices sound fantastic, even outdoors. Acoustic tracks, chill playlists, and anything midrange-heavy work very well with this tuning.
The trade-off is that the mids can come across slightly shouty at higher volumes, especially above 60 percent. The bass presence is decent but nowhere near what the Soundcore AeroFit 2 or Shokz OpenFit 2 achieve. Those models simply have more sub-bass extension.
The highs here are crisp without being harsh, though the overall soundstage is more narrow. If you’re looking for a wide, airy, spatial presentation, this isn’t that. Everything feels more centered and closer to your ears.
What I liked is that even during runs or windy rides, the clarity held up far better than I expected. EarFun’s driver positioning probably helps more than they let on.
Battery Life
EarFun claims up to 11 hours of listening (AAC) on a single charge and up to 42 hours total with the case. With LDAC enabled, the numbers drop, but they’re still strong.
What impressed me most was the real-world performance. During one particularly busy review day, I wore the OpenJump from morning to early evening—around seven to eight hours of mixed use including a bike ride, a run, showering, podcasts, YouTube, and some scripting work—and the buds still had roughly half their battery left.
I never once felt range anxiety with these, which is more than I can say for many open-ear models I’ve tested.
There’s no fast charging, but honestly, with this kind of endurance, it’s not something I ever missed.
Final Thoughts
For the price, the EarFun OpenJump delivers:
- Outstanding all-day comfort
- A stable and secure fit for any sport
- Big battery life with wireless charging
- Multipoint, LDAC, Game Mode, and EQ tuning
- Clean mids and great clarity for podcasts and daily listening
- IPX7 waterproofing
- Customizable controls
Yes, the bass won’t satisfy heavy bass lovers.
Yes, microphone quality is only average.
And no, these aren’t made for gamers.
But for outdoor runners, cyclists, gym goers, and anyone who hates the pressure of in-ear tips, the EarFun OpenJump checks almost every box that matters.
This is EarFun’s first open-ear design—yet it already competes with more established names. If you’ve been looking for budget-friendly open-earbuds that actually get the basics right, the OpenJump should absolutely be on your shortlist.
Best Deal: View on Earfun
Nick, the Co-founder of Earbuds Arena, is a seasoned freelance tech journalist with over ten years of experience covering wearables, apps, headphones, and gadgets. When he’s not immersed in the tech world, you’ll likely find him unwinding with video games, going for a run, or enjoying a game of soccer on the field.
