We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-26 · 7 min read · Independent comparison
If you want a cheap, wired pair you can hand out, lose, sweat on and replace without a second thought, choose JustJamz Bulk Earbuds 100; if you need one pair that actually stays in your ears through a workout and keeps playing for days between charges, choose HAOYUYAN Earbuds.
• JustJamz Bulk Earbuds 100 — biggest strength: you get 100 wired in-ear pairs in one go, each with a 3.5mm jack, a 1-metre flat tangle-resistant cord and a built-in volume control. In a gym setting that means a fresh pair for every session, every locker, every guest.
• JustJamz Bulk Earbuds 100 — biggest trade-off: it's a basic wired earphone. No Bluetooth, no battery, no waterproof rating, no ear hooks. The cable is the whole story.
• HAOYUYAN Earbuds — biggest strength: wireless freedom with flexible ear hooks, IPX7 waterproofing, environmental noise cancellation and a stated 80 hours of total playtime with an LED battery display on the case.
• HAOYUYAN Earbuds — biggest trade-off: it's one pair, and it's a battery product. You have to charge it, pair it, and keep track of it. Lose one bud and you're down to nothing.
• Who each is for: JustJamz for classrooms, gyms, clubs, resale and anyone who needs spares in bulk; HAOYUYAN for one person who wants a secure, sweat-proof wireless set for running, lifting and outdoor training.
The JustJamz Dot is a deliberately plain in-ear earphone: plastic shell, rounded tip, soft silicone earbud tips, dynamic driver, 32 ohm impedance and a frequency range of 20 Hz to 20,000 Hz. It's wired, it terminates in a standard 3.5mm jack, and the cable runs 1 metre — about three feet. The flat cord is the detail I like most here, because flat cables resist the tangling that ruins cheap round ones after a week in a bag.
What it does best is scale. This is a 100-pack. The listing frames it around classrooms, libraries, students and sharing, and it's easy to see why that framing works for fitness too. Think about a gym that runs group cycling classes and wants to hand out audio to anyone who forgot theirs. Think about a school weight room where equipment gets borrowed and lost. Think about a personal trainer who keeps a drawer of spares for clients. One box covers all of it, and the built-in volume control means the person using it can adjust without reaching for their phone mid-set.
Who should skip it: if you're a single person who wants one good pair for your own training, this isn't that product. There's no Bluetooth, so your phone lives in your pocket or an armband. There's no water-resistance rating in the data sheet, so heavy sweat and rain are a genuine question mark. And with 100 pairs, you'll be storing earbuds for years. That's the trade: unbeatable redundancy, zero wireless convenience.
HAOYUYAN Earbuds: Who It's For
The HAOYUYAN BX17 is built around the opposite idea. It's a wireless in-ear headphone using Bluetooth 5.3, with a hook-shaped earpiece that loops over the ear rather than sitting loose in it. That hook, plus three sizes of silicone tip, is the whole reason this design exists: it's meant to stay put when you move. For running, burpees, sled pushes and anything that involves your head changing direction fast, an over-ear hook is a much safer bet than a plain bud.
The waterproofing is the other headline. IPX7 means protection against sweat, rain and even accidental submersion up to a metre for 30 minutes. I'd treat that as the practical ceiling rather than a challenge — but it's a meaningfully tougher rating than most casual earbuds carry, and it's the spec that matters if you train outdoors or sweat heavily.
Then there's the battery story. HAOYUYAN states up to 80 hours of total listening time, with each earbud running about 15 hours per charge and the case providing eight additional full charges. The case has a dual digital display showing remaining power. Charging is over Type-C. Pairing uses a hall switch, so opening the case powers the buds on and reconnects them to your last device automatically. Controls are physical push buttons rather than touch — a small thing, but buttons are far less annoying when your hands are sweaty or you're mid-rep with gloves on.
Audio-wise you get 14.3mm dynamic drivers and environmental noise cancellation, which the listing describes as balancing internal and external pressure to keep voices clear in noisy rooms. That's useful in a busy gym floor where you still want to hear a training partner or a coach.
Who should buy it: one person who trains regularly, wants a secure wireless fit, cares about sweat and rain, and doesn't want to think about charging every day. Who should skip it: anyone who needs many pairs, anyone who wants a wired connection with no battery at all, and anyone who prefers a simple plug-in-and-go setup over managing a charging case.
• Best for a single gym-goer who wants wireless freedom → HAOYUYAN Earbuds. Bluetooth 5.3, no cable snagging on equipment.
• Best for a facility, class or club buying in quantity → JustJamz Bulk Earbuds 100. One purchase, 100 usable pairs.
• Best for sweat and rain → HAOYUYAN Earbuds. IPX7 is a stated rating; JustJamz lists no water-resistance figure at all.
• Best for secure fit while running or jumping → HAOYUYAN Earbuds. Flexible ear hooks plus three tip sizes versus a plain rounded-tip in-ear.
• Best for long sessions away from a charger → HAOYUYAN Earbuds. Up to 80 hours total with a 15-hour single-charge figure and an LED power display.
• Best for zero charging, zero pairing, zero setup → JustJamz Bulk Earbuds 100. Wired 3.5mm, nothing to maintain.
• Best for sharing, lending or resale → JustJamz Bulk Earbuds 100. That's exactly what a 100-pack is for.
• Best if you lose or break earbuds constantly → JustJamz Bulk Earbuds 100. Losing one pair out of a hundred barely registers.
For my own training, I'd buy the HAOYUYAN Earbuds. The ear-hook design, IPX7 rating and 80-hour battery figure are the three things that actually decide whether earbuds survive a real gym routine, and they're all in HAOYUYAN's favour. The BX17's push-button controls and automatic reconnection are small conveniences that add up over months of daily use. I'd only switch to the JustJamz 100-pack if I were outfitting other people — a team, a class, a gym front desk or a family — because that's the job it was clearly designed to do, and it does it at a scale nothing else here matches. Check the current price on Amazon before you commit, since both products sit in very different buying categories.
FAQ
what is best headphones for gym
In my opinion there's no single answer, because it depends on whether you want wireless or bulk. For one person training regularly, the HAOYUYAN BX17's ear hooks, IPX7 waterproofing and long battery life make it the stronger gym pick. For a facility handing out audio to many people, the JustJamz 100-pack is the practical choice.
Look for a secure fit and sweat protection first. HAOYUYAN offers flexible ear hooks, three silicone tip sizes and an IPX7 rating, which directly addresses both. JustJamz offers a lightweight in-ear fit with silicone tips and sound isolation, but the data sheet lists no water-resistance rating, so treat it as an indoor or low-sweat option.
what headphones for gym reddit
The recurring advice in gym threads is usually "something that won't fall out and won't die on you." By the specs, HAOYUYAN answers that with ear hooks, IPX7 and up to 80 hours of total playtime. If you'd rather avoid batteries entirely, JustJamz is a wired 3.5mm option with a flat, tangle-resistant cord.
what headphone is good for gym
A good gym headphone needs to stay in place, tolerate sweat and last a full week of sessions. HAOYUYAN's BX17 covers all three on paper: hook-style fit, IPX7, 15 hours per charge and eight extra case charges. JustJamz is more of a spare-and-share solution than a primary training headphone.
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