How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a pocket-sized pair of true wireless earbuds with a charging case, active noise cancellation and a 32-hour total playtime, choose Jxrev Earbuds; if you need an open-ear, bone-conduction headset that keeps your ear canal free and lets you hear traffic while you run, choose Gelecek Waterproof Open-Ear Bone.
• Jxrev Earbuds — biggest strength: a full true-wireless package with 13mm dynamic drivers, four noise-cancelling mics, touch controls and up to 32 hours of total playtime from a USB-C case.
• Jxrev Earbuds — biggest trade-off: they sit inside your ear, so they block your ear canal and you lose the ambient awareness an open-ear design gives you.
• Gelecek Waterproof Open-Ear Bone — biggest strength: bone-conduction sound through an ear-hook that leaves your ear canal completely open, so you stay aware of cars, horns and voices while you train.
• Gelecek Waterproof Open-Ear Bone — biggest trade-off: 10 hours of battery on a single charge with no charging case, and no active noise cancellation.
• Who each pick is for: Jxrev Earbuds suit commuters, students and anyone who wants immersive sound in a tiny case; Gelecek Waterproof Open-Ear Bone suits runners, cyclists and hikers who prioritise safety and comfort over isolation.
The Jxrev Earbuds are built around the classic true-wireless formula, and they execute it with a few numbers that matter. Each bud weighs just 3 grams, which is about as light as in-ear headphones get, and the charging case is described as pocket-sized. You open the case, the buds pair automatically, and you're listening. The drivers are 13mm dynamic units, which is a large driver for this category — the design intent is deep bass and clear mids rather than thin, tinny output. Four built-in mics handle call noise cancellation, and there's active noise cancellation as a control feature.
Battery is where these stand out on paper. You get 6 to 8 hours from a single charge and a total of 32 hours with the case, and the case itself refills in about an hour over USB-C. That's a week of commuting without hunting for a cable. The IP7 rating plus an internal nano-coating means sweat and rain are covered, so gym sessions and outdoor runs are squarely in scope. Controls are touch-based on both ears: volume, track skipping, play/pause, calls and voice assistant.
Who should skip them: if you ride a bike in traffic or run on open roads and you want to hear what's behind you, sealed in-ear buds with active noise cancellation work against you. The same applies if you dislike things sitting in your ear canal, or if you want a headset with no case to keep track of. And if you need battery measured in double-digit hours from a single charge rather than across a case, look at the Gelecek instead.
Gelecek Waterproof Open-Ear Bone: Who It's For
The Gelecek Waterproof Open-Ear Bone takes the opposite approach entirely. It's a bone-conduction headset, which means the driver sends vibration through your cheekbone rather than pushing air into a sealed ear canal. Nothing goes inside your ear. For people with sensitive ear canals, or anyone who gets sore after an hour of in-ear buds, that's the whole point. The frame is titanium with an ear-hook shape, and the whole machine is described as ultra-light — much lighter than typical Bluetooth headsets — so it's meant to disappear on your head.
The safety argument is the strongest one here. Because your ears stay open, you hear car horns and human voices while music plays. For road running, city cycling and shared paths, that's a design feature, not a compromise. The connection side uses a Bluetooth 6.0 chip, which the spec sheet credits with longer transmission distance and stronger anti-interference in crowded areas. Battery is 10 hours of continuous playback or calls on one charge — no case, no top-ups mid-session, enough for a full day of weekend hiking or a working day plus an evening run. Waterproofing is rated for heavy sweat and light rain, which covers high-sweat training.
Who should buy them: runners, cyclists, hikers, weightlifters and anyone training outdoors who wants music without cutting themselves off from their surroundings. Also a strong fit for people who find in-ear buds uncomfortable or who've been told to keep their ear canals clear.
Who should skip them: if you want deep, isolated bass and a sealed listening experience on a plane or train, bone conduction isn't that. There's no active noise cancellation, no charging case and no stated warranty, and the fit is a fixed ear-hook rather than something you can swap tips on. Commuters who mainly want to block out the world should look elsewhere.
Side-by-Side: Which Should You Choose?
• Best for longer single-session runtime → Gelecek Waterproof Open-Ear Bone. 10 hours without recharging, versus 6–8 hours per Jxrev charge.
• Best for running and cycling in traffic → Gelecek Waterproof Open-Ear Bone. The open-ear design keeps horns and voices audible.
• Best for immersive music and calls → Jxrev Earbuds. 13mm dynamic drivers, four mics and active noise cancellation.
• Best for sensitive or easily sore ears → Gelecek Waterproof Open-Ear Bone. Nothing enters the ear canal.
• Best for commuting and travel → Jxrev Earbuds. A pocket-sized USB-C case that refills in about an hour.
• Best for sweat-heavy indoor training → either works. Jxrev carries IP7; the Gelecek is built for heavy sweat and light rain.
• Best for a gift → Jxrev Earbuds. The white minimalist design and complete accessories make it the easier present to hand over.
One practical note: this page is a spec-based comparison, not a test bench, so treat the numbers above as design intent rather than measured results. If budget is your deciding factor — and for most people reading this, it is — check the current price on Amazon using the button on this page before you commit. Budget headphones live and die by value at the moment you buy.
In my opinion, the Gelecek Waterproof Open-Ear Bone is the better buy if your priority is outdoor training and staying aware of your surroundings. The open-ear bone-conduction design, the 10-hour single-charge battery and the titanium ear-hook frame are exactly what a runner or cyclist needs, and nothing in the Jxrev spec sheet replaces that. That said, if you want one small case that covers music, calls, noise cancellation and a 32-hour total runtime for commuting and the gym, I'd pick the Jxrev Earbuds — the 13mm drivers and four mics simply do more for everyday listening. Decide which of those two lives is yours, and the choice makes itself.
Both are budget-tier picks that solve different problems. Jxrev Earbuds give you sealed in-ear sound, active noise cancellation and 32 hours total with the case. Gelecek Waterproof Open-Ear Bone gives you an open-ear bone-conduction fit and 10 hours on one charge. Pick based on whether you want isolation or awareness.
The spec sheets tell you what each manufacturer states. Jxrev lists 6–8 hours per charge plus a 32-hour total with the case, and a 90-day manufacturer warranty. Gelecek lists 10 hours per charge and no warranty. Battery life on paper is only half the story — build quality and how you store them matter just as much.
Match the design to the activity rather than chasing specs. If you run or cycle outdoors, the Gelecek's open-ear ear-hook keeps you safe and stays put. If you commute, study or take calls, the Jxrev's sealed fit, noise-cancelling mics and pocket case are the more useful combination.
Start with fit — a proper seal matters far more than any setting on in-ear buds like the Jxrev. Then check your source device's EQ and make sure you're using the best available Bluetooth codec and a clean connection. On the Gelecek, position the bone-conduction transducers firmly against your cheekbone; contact quality drives the output.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.
See also: Flutesan 30 vs Gaosen Bulk Class Set: On the Ear Headphones, ausounds AU-Stream Hybrid vs VEKJ Ear Plugs-2, JVC Soft vs HEGVGVB Open Ear Headphones, Shokz OpenRun Pro 2 vs Tayogo Rock PRO Waterproof