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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a single pair of open-ear wired earbuds built for long study sessions on a Lightning iPhone, choose Avantree Resolve; if you need 18 wired on-ear headphones for a classroom, testing center or group of students, choose Yunsailing 18. That is the whole decision in one line, and for studying specifically the two products barely compete — they solve different problems.
• Avantree Resolve, biggest strength: an open-ear hook design that sits outside the ear canal, so you stay aware of your surroundings while you listen — genuinely useful for studying in a shared room, an office or a commute.
• Avantree Resolve, biggest trade-off: it is wired with a Lightning plug, so it only works with iPhone 5 through iPhone 14. No USB-C, no 3.5 mm jack, no Android, no laptop.
• Yunsailing 18, biggest strength: you get 18 individually wrapped pairs in one box, each with an adjustable over-ear fit and a 3.5 mm plug that works with almost any computer, laptop or phone.
• Yunsailing 18, biggest trade-off: it is a bulk classroom set, not a personal listening product. The fit is one-size-adjustable rather than ear-specific, and the cable is a fixed 1.2 m PVC cord.
• Pick Avantree Resolve if you are one person who wants comfortable, situational-awareness earbuds for studying on an older iPhone.
• Pick Yunsailing 18 if you are equipping a class, a lab, a hotel or an event and need many pairs at once.
Avantree Resolve is a wired open-ear earbud with an angled ear hook. The driver is a dynamic driver with a 20 Hz to 20,000 Hz frequency range and 16 ohm impedance, and Avantree says the tuning emphasizes treble for clear audio. In practice that means vocals, lectures and spoken-word content come through cleanly, which is exactly what you want when you are working through recorded material or a long study playlist.
The design is the real story. Because the earbuds sit outside the ear canal instead of plugging it, there is no pressure build-up, and you keep hearing what is happening around you. For studying in a dorm, a kitchen table or a shared office, that is a meaningful difference from sealed in-ears — you can hear a roommate, a doorbell or a question directed at you without pulling anything out. The soft silicone earhooks hold the buds in place, and the in-line push-button controls handle volume, playback, track skip and calls one-handed, so you are not reaching for your phone mid-session.
Who should buy it: a single user with small-to-medium ears, on an iPhone 5–14, who wants comfortable wired earbuds for studying, commuting and workouts where hearing your surroundings matters. Who should skip it: anyone on USB-C or Android, anyone with larger ears who does not want to size up, and anyone who wants isolation from background noise.
Yunsailing 18: Who It's For
Yunsailing 18 is a bulk pack of 18 wired on-ear headphones in purple, each individually wrapped in its own bag. The frame rotates 90 degrees and folds for storage, the fit is adjustable, and the shell is ABS with a PVC cable measuring about 1.2 m (3.94 ft). The plug is a standard 3.5 mm jack, so it works with most phones, computers, laptops and fitness equipment.
The audio side is straightforward: a dynamic driver with 101 dB sensitivity and passive noise cancellation from the closed on-ear pads. Yunsailing states the maximum output sits between 95 and 101 decibels and is tuned not to feel harsh for everyday use. The ear pads are PU leather over soft cushioning, which is the detail that matters most for a product like this — students wear these for a full class period, and a hard pad would be a problem within twenty minutes.
The real value proposition is the count and the packaging. Eighteen pairs, each wrapped separately, means you can hand them out, label them, store them in a bin, and not worry about a shared set getting mixed up or handled by thirty people a day. That is exactly the use case Yunsailing is aiming at: classroom sets, school testing, language labs, training centers and hotels. The ABS shell and PVC cable are specified as corrosion-resistant and reusable rather than disposable, which is the honest framing for a bulk product — it should survive repeated handling, but it is not built like a premium personal headphone.
Who should buy it: teachers, tutors, testing coordinators, lab managers and anyone who needs a stack of working headphones for other people. Who should skip it: a single buyer who wants one great pair for their own studying. If you are one person, you are paying for 17 headphones you will never open.
• Best for a single student on an iPhone → Avantree Resolve. One pair, open-ear comfort, Lightning plug, in-line controls.
• Best for a classroom, lab or testing center → Yunsailing 18. 18 individually wrapped pairs with a universal 3.5 mm plug.
• Best for device compatibility → Yunsailing 18. The 3.5 mm jack reaches phones, laptops, desktops and fitness equipment; Resolve is locked to Lightning iPhones.
• Best for staying aware of your surroundings → Avantree Resolve. The open-ear design deliberately does not seal the canal.
• Best for isolation from background noise → Yunsailing 18. Its on-ear PU leather pads provide passive noise cancellation; the Resolve has none.
• Best for all-day personal comfort → Avantree Resolve, provided your ears measure under 2.5 inches — the soft silicone hooks and outside-the-canal fit are designed for long sessions.
• Best for sharing, storage and repeated handling → Yunsailing 18. Folding, 90-degree rotating frames and individual wrapping make it easy to distribute and pack away.
• Best for cable length and durability framing → Yunsailing 18. A 1.2 m PVC cable with an ABS shell, described as reusable rather than disposable.
If I were buying for myself — one person, studying, on an iPhone with a Lightning port — I would buy the Avantree Resolve. In my opinion, the open-ear hook design is the more thoughtful product for studying: no canal pressure, your surroundings stay audible, and the treble-forward tuning suits speech and long listening sessions. The two conditions are real, though: measure your ear first, and confirm your phone is Lightning, not USB-C. If you are outfitting a room full of students instead of yourself, I would buy the Yunsailing 18 — 18 wrapped pairs with a universal 3.5 mm plug is the right answer for that job, and the Resolve simply cannot do it.
FAQ
No — both are wired. Avantree Resolve uses a Lightning jack and Yunsailing 18 uses a 3.5 mm jack. If you specifically want wireless earbuds for studying, neither of these is the right category; these are wired options chosen for reliability and no charging.
Yunsailing 18, clearly. It ships as 18 individually wrapped pairs with adjustable over-ear fit, folding storage and a 3.5 mm plug that suits computers, laptops and testing equipment. Avantree Resolve is a single pair sized for small-to-medium ears and only works with Lightning iPhones.
Yes — I do not quote prices here, and both listings can change. Use the "Check latest price on Amazon" button on this page to see current pricing for whichever one fits your situation, then decide.
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