We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-08 · 7 min read · Independent comparison
If you want a lightweight everyday pair of noise-cancelling in-ear earbuds with a mic and touch controls for shifts, commutes and workouts, choose JNXIKOU Earbuds Headphones Noise; if you need headphones that survive actual submersion and let you listen while swimming, choose Opinta Bone Conduction Swimming. I get asked about this pairing a lot by nurses, because the two needs behind it are genuinely different: one is a pair of gaming headphones for nurses and general workday earbuds, the other is an open-ear headset built around water. The JNXIKOU set is the more conventional pick, the Opinta is the specialist, and the IPX7-style waterproofing question is exactly where buyers get confused, so let me untangle it properly.
• JNXIKOU's biggest strength: a compact half-in-ear design with touch control, a built-in microphone and IPX5 nano-coating — a straightforward everyday wireless earbud for work, gym and calls.
• JNXIKOU's biggest trade-off: IPX5 covers sweat, rain and splashes, not swimming, and the listing's own bullet text mixes IPX5 and IPX7 wording, so treat it as splash-resistant rather than submersible.
• Opinta's biggest strength: IPX8 waterproofing rated for use underwater to 3m, plus a built-in 32GB MP3 mode so you can keep listening once Bluetooth drops out under water.
• Opinta's biggest trade-off: Bluetooth does not work underwater at all, so you must switch to MP3 mode before getting in, and the open-ear fit is bulkier than a normal earbud.
• Who each pick is for: JNXIKOU for nurses and everyday listeners who want with-mic in-ear headphones for calls, music and workouts on land; Opinta for swimmers, divers and open-ear headphones for nurses who want to stay aware of their surroundings.
The JNXIKOU pair is a conventional true-wireless earbud, and it behaves like one. You get Bluetooth 5.0 for one-step pairing, lower power draw and low-latency audio, which matters if you're watching video or gaming on a break. The touch panels on the earbuds handle play, pause, track skipping and call answer/reject without you reaching for your phone — a small thing until you're mid-task and can't touch a screen.
Who should skip it? Anyone who genuinely needs to swim in their headphones. The water resistance here is IPX5 nano-coating — it seals the surfaces against sweat and rain, which is fine for running in bad weather and heavy gym sessions. It is not a swimming rating. If you plan to submerge these, don't. Also skip if you dislike touch controls; there are no physical buttons to press, so you'll be tapping a smooth surface to change tracks. Everything else is standard: plastic shell, black finish, wireless Bluetooth, no folding hinge to speak of.
Opinta Bone Conduction Swimming: Who It's For
Opinta's headset is built around one job: playing audio in water. The IPX8 rating is the headline — it's rated for use underwater to 3m depth and tolerates being submerged or hit with high water pressure, and it's also dust, sweat and rain resistant. That's a real step beyond splash protection, and it's why swimmers, divers and people doing pool training gravitate to this style.
The catch is stated plainly in the listing, and it's worth repeating because it trips people up: Bluetooth cannot transmit underwater. You have to switch to MP3 mode before you get in. That's why Opinta includes a 32GB memory card — you load your music or podcasts onto the headset itself, and the 200mAh battery gives up to 8 hours of playback or talk time on a roughly 2-hour charge. Above water, you can use the latest Bluetooth 5.4 connection for a stable, fast link. It's a genuinely dual-mode device, and the multi-function buttons switch modes, control playback and handle calls.
The other half of the design is the open-ear, bone-conduction approach. At around 30g with a soft silicone build, it sits outside the ear canal rather than inside it, so it doesn't press on the ear and doesn't fight with hats or glasses. That's the same reason open ear headphones for nurses show up in this conversation — you keep your hearing open to what's around you, which matters in a busy corridor, a ward, or on a road. The sound is tuned for water, with an emphasis on low-frequency precision and a hydrodynamic interference function, so it stays clear when you're moving through water.
Skip it if you want a discreet earbud for calls in a quiet room — the open design leaks sound both ways and there's no active noise control at all. Skip it too if you want to keep Bluetooth running while you swim; that simply isn't how this works. And note the fitting tip: if the headset feels loose, the package includes an adjustment strap.
Side-by-Side: Which Should You Choose?
• Best for sweat, rain and gym sessions → JNXIKOU Earbuds Headphones Noise. IPX5 nano-coating is matched to sport, not submersion.
• Best for calls and microphone use → JNXIKOU Earbuds Headphones Noise. A built-in mic plus touch answer/reject; Opinta's mic is more of an above-water feature.
• Best for staying aware of your surroundings → Opinta Bone Conduction Swimming. Open-ear, bone conduction, nothing blocking the canal.
• Best for long-shift comfort in the ear → JNXIKOU Earbuds Headphones Noise. The shallow half-in-ear shell is designed to avoid ear-canal pressure, which suits all-day wear.
• Best for battery and storage flexibility → Opinta Bone Conduction Swimming. Up to 8 hours per charge and 32GB onboard, so no phone required.
• Best for low-latency video and gaming → JNXIKOU Earbuds Headphones Noise. Bluetooth 5.0 with ultra-low latency is aimed at exactly that.
• Best for a single do-everything pair → JNXIKOU Earbuds Headphones Noise, provided "everything" doesn't include getting in the water.
In my opinion, most people reading this should buy the JNXIKOU Earbuds Headphones Noise. It's the safer, more versatile pick: Bluetooth 5.0, a mic, touch control, a comfortable half-in-ear fit and enough water resistance for sweat and rain. For the nurses I write for, it covers shifts, commutes, workouts and calls in one small package. I'd only send you to the Opinta Bone Conduction Swimming if water is the actual point — if you swim or dive and want music underwater, its IPX8 rating and 32GB MP3 mode make it the one that can genuinely do the job. Buy for the environment you'll actually be in.
FAQ
are headphones waterproof
are headphones water resistant
Most sport-oriented pairs are, to some degree. JNXIKOU's IPX5 coating seals both earbuds against sweat and rain for all-weather training, and Opinta adds dust, sweat and rain resistance on top of its IPX8 underwater rating. Water resistance is the floor, not the ceiling — check the number.
No — I'd advise against it. Their protection is IPX5, which is built for sweat and rain rather than being submerged, and the listing's mixed IPX5/IPX7 wording doesn't change that. If swimming is your plan, the Opinta's IPX8 rating is the one designed for it.
Yes, but only in the right mode. Opinta's Bluetooth signal cannot transmit through water, so you have to switch the headset to its built-in 32GB MP3 mode before getting in. In that mode you can listen underwater, and swap back to Bluetooth 5.4 once you're out.
If price is the deciding factor for you, check the current price on Amazon using the button on this page — it's the only figure that changes, and everything above is based on the specs.
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