How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a shared set of sturdy wired headphones that can equip a whole classroom, choose Yoley Classroom Headphones Bulk; if you need a single pair of wireless open-ear earbuds for running, cycling and calls, choose Purity Air Open Ear.
• Yoley Classroom Headphones Bulk — biggest strength: 12 wired on-ear headphones in one pack, with adjustable headbands, a reinforced 3.5mm plug and an 18-month warranty. Built for groups, not for one person.
• Yoley Classroom Headphones Bulk — biggest trade-off: Wired only, no Bluetooth, and on-ear cups that isolate sound rather than let it in. Not for workouts or calls on the move.
• Purity Air Open Ear — biggest strength: True open-ear air conduction with Bluetooth 5.3, dual mics for calls, IPX5 sweat resistance and a 15mm dynamic driver in a 2.8-ounce neckband design.
• Purity Air Open Ear — biggest trade-off: One pair per box, roughly 6 hours of battery per charge, and open-ear design means you hear your surroundings — which is the point outdoors, but not ideal in a noisy classroom.
• Who each pick is for: Yoley for teachers, schools and families equipping multiple kids; Purity for a single adult runner, cyclist or commuter who wants awareness and wireless freedom.
The Yoley Classroom Headphones Bulk is a 12-pack. That single fact drives everything else about it. The model number is FM857, it's manufactured by Yoley, and each unit is a black plastic on-ear headphone with a 32-ohm dynamic driver covering a 20 Hz to 20,000 Hz frequency range. There's no charging, no pairing, no battery to die mid-lesson — you plug the reinforced 3.5mm connector into a Chromebook, tablet, laptop or audio jack and it works.
What it does best is durability at scale. The 4-foot TPE cable and reinforced plug are described as extending usable life to 12–24 months, which matters when a cart of 30 devices gets handed out and collected every day. The headband adjusts, so the same headphone fits a young kid, a teen and an adult, and the on-ear design plus sound isolation keeps audio pointed at the wearer instead of bleeding across a quiet room. The 18-month warranty is a genuine plus for a school that has to justify a bulk purchase.
Who should buy it: teachers and school IT staff outfitting a class set, homeschool families with several kids, libraries, testing centers, or anyone who needs matching headphones for a group and doesn't want to manage 12 separate charging cables. If your students rotate between devices all day, wired is simply less to break.
Purity Air Open Ear: Who It's For
The Purity Air Open Ear is the opposite kind of product: one pair, wireless, built around movement. It uses air conduction to deliver sound to your ear without sealing it, which is why the earpiece shape is a neckband open-ear design rather than an in-ear bud. The theme is Sports, the color is Skull Camo, and it weighs 2.8 ounces.
The specs tell a clear story. Bluetooth 5.3 with a 10-meter range means you can leave your phone on a bench or in a bag and keep listening. The two 15mm dynamic drivers are unusually large for this category, and combined with a 20 Hz to 20,000 Hz frequency range and 18-ohm impedance, the design intent is fuller, more detailed sound than tiny buds typically manage. Dual microphones handle environmental noise cancellation on calls, so you can take a meeting mid-walk and still sound clear.
Then there's the awareness factor. Because nothing plugs your ear canal, you hear traffic, other runners, teammates and your surroundings while your audio plays. IPX5 water resistance covers sweat and light rain, and the secure neckband fit is meant to stay put through running and cycling. Battery life is rated around 6 hours per charge — fine for a workout, a commute or a long walk, not a full workday of continuous playback. The age range is listed as adult.
Who should buy it: runners, cyclists, gym-goers and commuters who want music and podcasts while staying alert, plus anyone who finds in-ear buds uncomfortable over long stretches. Who should skip it: teachers buying for a class, anyone who needs a multi-pack, and anyone who wants strong passive noise isolation — open-ear is deliberately the opposite of that.
• Best for a group or classroom → Yoley Classroom Headphones Bulk. Twelve headphones in one pack, sized to fit kids through adults.
• Best for a single person → Purity Air Open Ear. One pair, one owner, no spare units sitting in a drawer.
• Best for wireless freedom → Purity Air Open Ear. Bluetooth 5.3 with a 10-meter range; the Yoley is wired with a 3.5mm plug only.
• Best for workouts and sweat → Purity Air Open Ear. IPX5 resistance and a secure neckband fit; the Yoley is a classroom product with no water rating.
• Best for calls and meetings → Purity Air Open Ear. Dual microphones with environmental noise cancellation. The Yoley is built for listening.
• Best for staying aware of traffic and surroundings → Purity Air Open Ear. Open-ear air conduction lets ambient sound in by design.
• Best for zero charging and zero pairing → Yoley Classroom Headphones Bulk. Nothing to power, nothing to sync, nothing to lose track of.
• Best for long-term durability under heavy daily handling → Yoley Classroom Headphones Bulk. Reinforced plug, TPE cable and an adjustable headband rated for 12–24 months of use.
• Best for situational awareness in a quiet room → neither, honestly. The Yoley isolates sound; the Purity lets it in. Pick based on whether you want isolation or awareness.
If I were buying for myself — a single adult who runs, cycles and takes calls on the move — I'd buy the Purity Air Open Ear. The Bluetooth 5.3 connection, 15mm drivers, dual mics, IPX5 rating and open-ear awareness line up exactly with how I'd use headphones outdoors, and 6 hours per charge covers a workout plus a commute.
If I were equipping a classroom, a homeschool room or a family with several kids, I'd buy the Yoley Classroom Headphones Bulk without hesitating. Twelve wired units, adjustable fit, a reinforced plug and an 18-month warranty solve a problem the Purity simply wasn't designed for. In my opinion these aren't really competitors — they're two different jobs. Buy the one that matches yours, and check the current price on Amazon before you commit.
FAQ
Yes. They include dual microphones with environmental noise cancellation for calls. The Yoley Classroom Headphones Bulk is described as a listening product for classrooms, so it isn't positioned as a call headset.
I wouldn't recommend it. The Yoley is a wired on-ear classroom headphone with no water resistance rating, while the Purity Air Open Ear is specifically built for sports with IPX5 sweat resistance and a secure neckband fit.
The Yoley Classroom Headphones Bulk has no battery at all — it's wired, so it never needs charging. The Purity Air Open Ear runs on a built-in battery with an average life of about 6 hours per charge. Which is "better" depends on whether you'd rather plug in or charge up.
The Yoley Classroom Headphones Bulk includes 12 headphones in a single pack. The Purity Air Open Ear is sold as one pair per package.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.