How We Research
Updated: 2026-09-21 · 6 min read · Independent comparison
If you want a pair of headphones you can actually swim in — with your music stored inside them and no phone anywhere near the pool — choose RR SPORTS IP68; if you need all-day battery life, active noise reduction and a more conventional earbud fit for the gym or the street, choose LEEMC Earbuds.
These two look like competitors on a spec sheet, but they're solving completely different problems. One is built around water. The other is built around endurance. Here's how I'd separate them.
• RR SPORTS IP68 — biggest strength: true IP68 sealing rated for submersion up to 2 meters, plus a built-in 32GB MP3 player that holds roughly 7,000 songs, so it works with no phone at all.
• RR SPORTS IP68 — biggest trade-off: Bluetooth doesn't work underwater — you have to switch to MP3 mode before you get in the pool, and there's no active noise cancellation.
• LEEMC Earbuds — biggest strength: an 80-hour playtime figure, IPX7 water resistance, hook-style sport fit and passive noise cancellation for workouts and commuting.
• LEEMC Earbuds — biggest trade-off: IPX7 is splash and sweat resistance, not swimming-grade submersion, and it's a Bluetooth-only earbud with no onboard storage.
• Pick RR SPORTS IP68 if swimming, showering or heavy sweat is the main event.
• Pick LEEMC Earbuds if you want long battery life, a locked-in hooked fit and noise isolation for running, gym work and daily listening.
The RR SPORTS IP68 is the more specialized product of the two, and it earns that specialization. The headline is the IP68 rating — the design is sealed and finished with a nano-hydrophobic coating, and RR SPORTS states it can handle submersion in up to 2 meters of water. That's a different class of protection than "sweat resistant." It's the difference between a headphone that survives a rainstorm and one you can wear through laps.
The second pillar is the dual-mode design. There's a built-in 32GB memory that RR SPORTS says holds about 7,000 songs across MP3, WMA, WAV and FLAC. You load files from a computer using the included magnetic charging cable, then leave the phone in your bag. That matters more than it sounds: Bluetooth doesn't travel through water, so a swimmer simply can't stream. RR SPORTS is upfront about this — you must use MP3 mode when swimming. If you ignore that, you'll get silence and blame the headphones.
Comfort comes from the open-ear, bone-conduction approach. There's no tip jammed into your ear canal; the driver sits against bone, and the silicone build is soft enough for long sessions. RR SPORTS says the fit works with both swim caps and goggles, which is the practical test most "swimming" headphones fail. Because your ears stay open, you keep ambient awareness — safer on a road bike or a busy pool deck, and easier on your ears over time than sealed earbuds.
Battery is 7 hours with a 2-hour charge, and the connection is Bluetooth with a 10-meter range. Controls are touch-based. There's no active noise cancellation here, and that's deliberate — blocking sound would defeat the point of an open-ear design.
Buy it if you swim, surf, shower or sweat heavily and want music without a phone nearby. Skip it if you mainly want noise isolation on a plane, or if you'd rather not manage file transfers.
The LEEMC Earbuds take the opposite route. Where RR SPORTS optimizes for water, LEEMC optimizes for time. The stated 80-hour playtime is the number that jumps off the page, and it changes how you use the product — you're not charging every night or planning around a workout. For someone who runs, lifts or commutes daily, that's a genuinely different relationship with a device.
The fit is the other differentiator. These are hooked earbuds, and the hook is what keeps them planted during movement. In-ear designs with a hook tend to stay put through sprints, burpees and head-down cycling in a way that open-ear designs sometimes don't. LEEMC also uses a dynamic driver, which is the conventional choice for fuller low-end in an in-ear bud — a reasonable expectation for bass-forward music, though the data sheet doesn't promise a specific tuning.
Noise control is listed as passive, meaning the seal of the tip does the work rather than an active circuit. Passive isolation is simple, needs no battery and never introduces that faint pressure sensation some people get from ANC. On a noisy train or a loud gym, that's usually enough. And the push-button controls are worth noting: physical buttons are unambiguous with sweaty hands in a way that touch panels aren't.
Buy it if you want long runtime, secure hooked fit and noise isolation for workouts, travel and daily listening. Skip it if your primary sport is swimming.
Side-by-Side: Which Should You Choose?
• Best for swimming → RR SPORTS IP68. IP68 with 2-meter submersion is the only one of the two rated for it.
• Best for battery life → LEEMC Earbuds. 80 hours versus 7 hours is not a close comparison.
• Best for phone-free workouts → RR SPORTS IP68. The 32GB player and roughly 7,000-song capacity mean no source device required.
• Best for noise isolation → LEEMC Earbuds. Passive noise cancellation and an in-ear seal versus none at all.
• Best for awareness and open-ear safety → RR SPORTS IP68. Bone conduction leaves your ears open to traffic and surroundings.
• Best for secure fit during jumping and sprinting → LEEMC Earbuds. The hook design is purpose-built for that.
• Best for showers and heavy sweat → RR SPORTS IP68. The nano-hydrophobic coating targets exactly this.
• Best for commuting and travel → LEEMC Earbuds. Runtime and isolation are what a commute actually rewards.
I'd buy the RR SPORTS IP68. Not because it's better overall — it plainly isn't better at battery life or noise isolation — but because it does something the LEEMC Earbuds can't do at all: it works in the water, with your music already inside it. The 32GB player plus IP68 sealing is a combination you can't replicate by adding accessories. If you never swim, that advantage evaporates, and I'd tell you to take the LEEMC Earbuds for their 80-hour runtime and hooked fit instead. Check the current price on Amazon before deciding, since both are sold there.
FAQ
No. RR SPORTS states Bluetooth mode doesn't work in water — you need to switch to MP3 mode before getting in. Load your music onto the 32GB memory first using the magnetic charging cable.
The RR SPORTS IP68 offers up to 7 hours of playback with a 2-hour charge time. The LEEMC Earbuds state up to 80 hours of playtime, which is a much larger figure and the main reason to pick them.
The LEEMC Earbuds, in my opinion. Passive noise cancellation, a hooked sport fit and long battery life suit indoor training and road running well. The RR SPORTS IP68 is the better pick if your route involves water, rain or a pool.
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