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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-28 · 7 min read · Independent comparison
• Generic MZYMI — biggest strength: Active Noise Cancelling with an 80 ohm dynamic driver, Bluetooth 5.4 and an IPX8 waterproof rating, all controlled from an app. It is built to seal sound in and noise out.
• Generic MZYMI — biggest trade-off: The listing's battery average life is 5 hours per charge (with a 2-hour charge time), so long days will need the charging case nearby.
• Rakklor Bone Conduction Headphones — biggest strength: Open-ear bone conduction design with 20 hours of playtime, a 30g+ wrap-around frame and IPX5 water resistance — made for movement and awareness.
• Rakklor Bone Conduction Headphones — biggest trade-off: No noise cancelling at all, and by design it does not seal your ears, so loud environments will bleed straight into your audio.
• Who each is for: The MZYMI fits anyone who wants private, noise-cancelled listening on a train, plane or in a busy office. The Rakklor fits runners, cyclists and hikers who refuse to be deaf to the world around them.
The MZYMI is a true in-ear TWS earbud, and everything about its spec sheet points at isolation and control. It uses Active Noise Cancelling to fire reverse sound waves at ambient noise, which is exactly what you want when you are sitting on a bus or a train and the engine drone is drowning out your playlist. On top of that it adds ENC ambient noise reduction on the microphone side, so the person on the other end of a call gets a cleaner version of your voice rather than the noise around you.
The audio hardware is worth a closer look. It runs a dynamic driver with a triple-layer composite diaphragm, an 80 ohm impedance, 40 dB sensitivity and a 20 Hz – 20,000 Hz frequency range. That impedance figure is on the higher side for a wireless earbud, which in plain terms suggests these are tuned to be driven with a bit of authority and lean toward a warm, bass-forward presentation rather than a thin, clinical one. Bluetooth 5.4 handles the connection, with auto-pairing when you open the case and a listed range of up to 10 metres.
Then there is the durability and convenience angle. IPX8 is a serious waterproof rating — that is the kind of number that survives sweat, rain and a rinsed-off post-workout situation. The charging case tops the buds up, and the companion app lets you tune the sound, adjust touch controls, switch on a "Be Aware" pass-through mode when you do want to hear what's around you, and set a safe-hearing volume limit. Touch and button controls are both listed, silicone tips keep things comfortable, and a 3-year warranty description rounds it out. It pairs with phones, tablets and laptops on iOS or Android.
Buy it if you want one pair of earbuds for commuting, calls, the gym and general phone listening, and you care about noise cancelling, water resistance and app-level tweaking.
Skip it if you are buying specifically for marathon-length outdoor sessions — the listed 5-hour average battery life per charge means you will be reaching for the case, and the sealed in-ear fit is the opposite of what a road cyclist should want.
The Rakklor is a completely different animal. It is an open-ear bone conduction headset, which means it sends audio to your inner ear through your cheekbone and leaves your ear canal completely open. Nothing is blocking your ears. That single design decision defines everything else about it, and it is the reason this product exists at all.
The pitch here is safety and awareness. If you run, cycle, hike or walk busy streets, keeping your ears open means you can hear a car, a bike bell or someone calling your name while your podcast keeps playing. Rakklor leans into that with a wrap-around ergonomic frame, skin-friendly silicone pads on both sides and a claimed weight of just over 30g — light enough that it is not going to bounce around or dig in during a long session. There is even an LED light built into the frame to keep you visible in the evening. The fit is described as secure enough to stay put through intense exercise, which is the whole point of a sport headphone.
Battery is where the Rakklor clearly wins on paper. It lists 20 hours of playtime on a single full charge, plus a fast-charge mode that gives you up to 90 minutes of listening after only 10 minutes on the cable. For a weekend of riding or a long hike, that is a real advantage. It charges over USB-C, runs Bluetooth 5.4, and lists a very low audio latency of 0.1 milliseconds, which matters if you watch video or game with them. It is IPX5 rated, so sweat and rain are handled, though it is a step below the MZYMI's IPX8. The acoustic design reduces sound leakage by roughly 50% compared to older bone conduction units, which addresses the classic complaint that everyone around you can hear your music.
Buy it if your listening happens outdoors, on the move, and you would rather hear the environment than block it out. Runners, cyclists, hikers and drivers are the target here.
Side-by-Side: Which Should You Choose?
• Best for noise cancelling → Generic MZYMI. It has dedicated ANC; the Rakklor lists noise control as "None".
• Best for battery life → Rakklor. 20 hours versus the MZYMI's listed 5-hour average life, plus a 10-minute fast charge for 90 minutes of use.
• Best for running and cycling safety → Rakklor. Open-ear design means full situational awareness, which is the reason to buy it.
• Best for commuting and calls → Generic MZYMI. ANC plus ENC microphone noise reduction is built for noisy transport and clear voice pickup.
• Best for water and sweat exposure → Generic MZYMI. IPX8 is the higher rating; the Rakklor sits at IPX5.
• Best for long outdoor sessions → Rakklor. Light 30g+ frame, secure wrap-around fit and a full day of playtime.
• Best for sound tuning and app control → Generic MZYMI. Custom EQ, touch controls, pass-through mode and a hearing-protection volume limit.
• Best for low-latency video and gaming → Rakklor. Its listed 0.1 ms audio latency is extremely low for wireless.
In my opinion, the right pick comes down to where you listen, not which product is "better". If your listening happens on a train, in an office or on calls, I would buy the Generic MZYMI — the ANC, IPX8 rating and app control make it the more useful everyday earbud, and the 5-hour battery is a fair trade for isolation and a charging case. If you run, ride or hike and safety matters more than bass, I would buy the Rakklor Bone Conduction Headphones — the open-ear design and 20-hour battery are exactly what that job needs. I would only cross over if you genuinely do both, in which case owning each for its own context makes more sense than forcing one to do everything.
The Generic MZYMI is the only one of the two with active noise cancelling, and it also adds ENC microphone noise reduction for calls. The Rakklor lists noise control as none, because its open-ear design deliberately lets outside sound in.
The Rakklor lists up to 20 hours of playtime on a full charge, plus 90 minutes from a 10-minute fast charge. The Generic MZYMI lists a 5-hour average battery life per charge, with a 2-hour charge time and a charging case for top-ups.
The Rakklor is IPX5 rated, which covers sweat and rain for outdoor sports. The Generic MZYMI is rated IPX8, a higher water-resistance level, so if heavy moisture is your main worry the MZYMI is the safer spec on paper.
For running and cycling, I would pick the Rakklor. Its open-ear fit keeps you aware of traffic, the wrap-around frame is built to stay put during intense exercise, and the 20-hour battery covers long sessions. The MZYMI is better suited to indoor workouts and commuting.
Prices change often, so check the current price on Amazon for whichever one you are leaning toward before you decide.
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