How We Research
Updated: 2026-09-28 · 7 min read · Independent comparison
If you want a single open-ear earpiece that stays put during calls and leaves one ear free to hear the world, choose Heayzoki Single Ear Hanging; if you need a full pair of in-ear sports earbuds with long playtime and a waterproof build, choose LEEMC Earbuds.
• Heayzoki Single Ear Hanging — biggest strength: an open-ear hanging hook design with a rotating alloy shaft, so you can angle the speaker to your ear and keep one ear open without blocking your surroundings.
• Heayzoki — biggest trade-off: it is a mono, single-earpiece setup with a 170mAh battery, so it is not built for all-day music listening or stereo sound.
• LEEMC Earbuds — biggest strength: a true in-ear pair with a charging case, ENC noise-cancelling mics, IPX7 waterproofing and a battery claim measured in many hours.
• LEEMC — biggest trade-off: it is a fully in-ear, sealed design, so you lose the open-ear awareness that makes a hanging earpiece useful in the office or on a bike.
• Choose Heayzoki if you want one ear free, glasses-friendly fit, and a discreet business-call earpiece.
• Choose LEEMC if you want a stereo pair for workouts, rain, sweat and long sessions.
The Heayzoki Single Ear Hanging is a mono Bluetooth earpiece that hangs over the ear rather than sitting inside the canal. The hook is the whole point: Heayzoki designed it so the weight of the earpiece is spread across the ear instead of pressing on one spot, and the support point uses soft rubber. That matters if you keep an earbud in for hours — a hanging design does not jam into the ear canal, so there is no pressure build-up and no need to keep re-seating it.
The other detail worth knowing is the rotating shaft. It is an imported alloy pivot with double rotation, which means you can swing the speaker arm and the hook independently until the driver lines up with your ear. Heayzoki explicitly notes this works with glasses, which is a real annoyance point with a lot of over-ear hooks — the arm and the temple of your glasses fight for the same space. Here they do not.
Inside, it is a 13mm dynamic driver covering 20Hz to 20kHz, tuned for bass presence and clear call vocals. That is a call-first tuning, not a critical-listening tuning. Combined with the DSP and software-based noise reduction on the microphone, the goal is filtering out background chatter so the person on the other end hears you rather than the room.
So who is this for? In my opinion, it is for the person who wants one ear covered and one ear open — someone taking calls while walking the floor, driving, or working in a shared space where they still need to hear a colleague or a doorbell. Bluetooth 5.0 with a rated 10m range is enough to leave your phone on a desk and move around a room. The 170mAh built-in battery is modest, and the ABS-and-rubber body weighs 98g, so plan on charging it regularly rather than treating it as a multi-day device.
Who should skip it? Anyone who wants to listen to music in both ears, wants stereo separation, or wants a sealed fit that blocks out a noisy commute. This is a one-ear communication tool, not a listening device.
The LEEMC Earbuds are the opposite philosophy: a full pair of in-ear sport earbuds built around a charging case. The enclosure is ABS with flexible ear hooks, and LEEMC ships three pairs of ear tips in small, medium and large, with medium already fitted. That tip selection is the practical bit — in-ear fit is personal, and having three sizes in the box means you can actually find a seal instead of accepting whatever comes installed.
The spec that stands out most is the battery. LEEMC rates the S12 at up to 50 hours of total playtime, with the battery field listing an average life of 80 hours when you factor in the case. Either way, the point is the same: this is a pair you charge occasionally, not nightly. An LED display on the case shows the power status so you are not guessing before a long run.
For workouts, the IPX7 rating is the headline. That is a genuine sweat-and-rain rating, not a splash-resistance afterthought, so jogging in bad weather or a heavy gym session is squarely within what LEEMC designed it for. The ENC microphones claim to cut up to 80% of background noise on calls, which is the same problem Heayzoki attacks from a different angle — LEEMC does it with environmental noise cancellation, Heayzoki with DSP filtering on a single mic.
Bluetooth 5.4 is the newer standard here, with a rated range of 39 feet, and LEEMC lists both button controls and app-based control, so you can adjust things without reaching for your phone. The case is described as palm-sized, which is the practical part for anyone carrying it in a pocket or a small gym bag. Weight is 81.2g for the set.
Who is this for? The runner, the gym-goer, the commuter who wants both ears filled and does not mind being sealed off from the room. Who should skip it? Anyone who needs to stay aware of their surroundings, wants an open-ear design, or specifically wants a single earpiece for calls. The sealed in-ear fit is the exact trade-off Heayzoki avoids.
• Best for staying aware of your surroundings → Heayzoki Single Ear Hanging. The open-ear hanging design leaves the canal clear.
• Best for workouts, sweat and rain → LEEMC Earbuds. IPX7 waterproofing is built for exactly that.
• Best for long sessions between charges → LEEMC Earbuds. Its playtime figures are in the tens of hours; Heayzoki runs on a 170mAh cell.
• Best for glasses wearers → Heayzoki Single Ear Hanging. The double-rotation alloy shaft is designed to sit around a glasses temple.
• Best for call clarity in a noisy room → both, differently. Heayzoki uses DSP and software noise reduction on one mic; LEEMC uses ENC mics rated to cut up to 80% of background noise.
• Best for stereo music listening → LEEMC Earbuds. Two drivers, three tip sizes, and a case. Heayzoki is a single earpiece.
• Best for a discreet, business-style look → Heayzoki Single Ear Hanging. One ear, no case, no pair to manage.
• Best fit flexibility → LEEMC Earbuds. Three ear tip sizes versus a fixed hanging hook.
If I had to pick one, I would buy the LEEMC Earbuds — but only if my priority is music, workouts and battery life. The combination of IPX7, three tip sizes, a charging case with an LED display and Bluetooth 5.4 covers far more everyday situations than a single earpiece can. I would recommend the Heayzoki Single Ear Hanging instead if you specifically want one ear open, wear glasses, and treat your earpiece as a call tool rather than a music device. They are not really competing for the same buyer; pick based on whether you want one ear or two. Check the current price on Amazon before deciding, since that is the one variable that can flip this call.
how to wear wrap around earbuds
Hook the flexible arm over the top of your ear so the speaker rests near the opening of the canal rather than inside it. On the Heayzoki, rotate the alloy shaft until the 13mm driver lines up with your ear. On the LEEMC, the ear hook holds the bud in place while the tip seals the canal.
how to use wrap around earbuds
Pair over Bluetooth, then control playback from the earpiece or your phone. Heayzoki uses remote media control over Bluetooth 5.0 with a rated 10m range. LEEMC uses button controls plus app control over Bluetooth 5.4 with a rated 39-foot range.
how to wrap string around earbuds
Neither of these is a wired set — both are wireless with no headphone jack — so there is no cable to wrap. Heayzoki has no case, so store it flat and dry. LEEMC stores in its palm-sized charging case, which is also where it recharges.
how to wrap earbuds around tech deck
That is a trick-format question rather than a real setup step, and neither product involves wrapping around a fingerboard. If you want a set that packs away small, LEEMC's palm-sized case is the one designed for pocket carry. Heayzoki is a single earpiece with a hook and no case.
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