How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-04 · 7 min read · Independent comparison
• Koss BT115i biggest strength: Physical in-line remote and microphone on the cable — volume, play/pause, track skip and calls without tapping a touch surface. Plus sweat resistance, a cable management clip and three silicone tip sizes.
• Koss BT115i biggest trade-off: Bluetooth 4.2 and a short per-charge runtime — the sheet lists 6 hours of average battery life and a 6-hour charge time. No active noise cancellation.
• OHAYO A10 biggest strength: 72 hours of standby, 1.5-hour fast charging, AI noise isolation, Bluetooth 6.0 and a companion white-noise app with custom EQ and sleep/Bluetooth mode switching.
• OHAYO A10 biggest trade-off: It is purpose-built for sleep and side sleeping — ultra-thin, no touch controls at all, and no in-line remote for calls or volume on the cable.
• Who Koss BT115i is for: Anyone who wants ordinary wireless earbuds for studying, walking and workouts with hands-on physical buttons.
• Who OHAYO A10 is for: Side sleepers, light sleepers and late-night studiers who want quiet, a flat low-profile shell and battery that lasts for days.
The BT115i is the more conventional product of the two. It is an in-ear Bluetooth bud with a cable that carries an in-line microphone and remote, which means every control — volume, pause/play, skip, answer/end — is a physical press rather than a tap on a touch panel. For a student who studies in short bursts between classes and wants to pause a lecture instantly without hunting for the right spot on a bud, that is a genuinely practical design. The angled ergonomic shape plus three pairs of silicone tips (small, medium and large) gives you a real chance of a stable fit, and the cable management clip keeps the wire from snagging on a desk or a backpack strap.
Who should skip it? Two groups. First, anyone who wants a long single charge — the sheet lists 6 hours of average battery life and a 6-hour charge time, so you will be plugging in over USB-C regularly. Second, anyone who wants noise cancellation. The noise control field is literally "None," so a noisy dorm, a café or a plane will bleed through. In my opinion, the BT115i is a strong pick for a student who wants simple, tactile controls and does not mind charging daily.
OHAYO A10: Who It's For
The A10 is not a general-purpose earbud. It is a sleep-first design: ultra-thin integrated molding, a shark-ridge shape that contours to the ear, and a low-profile shell that sits flush so it does not press into a pillow. If you are a side sleeper who reads or studies lying down, that geometry matters more than driver specs. The sheet does not list a driver size or frequency range for the A10, so I will not pretend to know its tuning — what it does list is AI noise isolation plus passive cancelling aimed at snoring, pets, appliance hum, traffic and street chatter, and a built-in white-noise library.
Battery is where the A10 walks away from the Koss. It claims 72 hours of extended standby on a 1.5-hour full charge, which the sheet frames around multiple nights of sleep and long trips. Read that number carefully: 72 hours is standby/extended use, not a single continuous listening session, so treat it as endurance across days rather than one marathon charge. Bluetooth 6.0 is the newer standard here, with fast pairing, low power draw and anti-interference stability — a real benefit if you sleep on your side with a pillow pressing against the bud.
The catch, and it is a big one for some buyers: the A10 is explicitly sold as sleep earbuds without touch control. There is no in-line remote either, so volume, skipping and calls are handled on the phone or through the Ohayo app. That app is the real control surface — natural white noises, DIY mixed soundscapes, custom EQ, and a switch between Sleep Mode and Bluetooth Mode. If you are looking for best voice assistant kids headphones for studying, this is not that product; there is no mic or remote described in the sheet. Who should skip it? Anyone who wants to answer calls, adjust volume by feel, or wear buds for a run. It is a sleep and quiet-focus tool, not a commute headset.
• Best for battery endurance → OHAYO A10. 72 hours of extended standby on a 1.5-hour charge versus 6 hours of average life on the Koss.
• Best for tactile, no-look controls → Koss BT115i. Physical in-line remote for volume, play/pause, skip and calls. The A10 has no touch control and no remote.
• Best for blocking snoring, traffic and dorm noise → OHAYO A10. AI noise isolation plus passive cancelling and a white-noise app; the Koss lists noise control as "None."
• Best for side sleeping and lying-down study → OHAYO A10. Ultra-thin, flush shell designed not to press into a pillow.
• Best for workouts, running and sweat → Koss BT115i. Sweat resistant with a cable clip and three tip sizes.
• Best for newer wireless tech → OHAYO A10. Bluetooth 6.0 versus Bluetooth 4.2 on the Koss.
• Best for calls and hands-free volume → Koss BT115i. In-line mic and remote; the A10 sheet lists no microphone.
• Best for a student who wants one simple pair of buds → Koss BT115i. If you need multipoint headband headphones for studying instead, neither of these is that product — both are single-connection in-ear buds.
For studying, I would buy the Koss BT115i. In my opinion, the physical in-line remote is the deciding factor: you can pause a lecture, skip a track or take a call without looking, and the sweat resistance and three tip sizes make it usable for the walk to class and the gym too. The A10 is the better product if your study happens in bed, at night, next to a snorer, or if you cannot stand charging something every day — 72 hours of standby and AI noise isolation are real advantages. But as an all-round study companion with controls you can feel, the Koss wins for me. Check the current price on Amazon before you commit, since that is the one thing that can flip this call.
Touch control means the earbud's outer surface responds to taps and swipes — tap to pause, swipe to change volume — instead of a physical button or an in-line remote. The Koss BT115i uses a physical in-line remote on the cable rather than touch control, and the OHAYO A10 is specifically built without touch control so a pillow press will not trigger commands.
On touch-enabled buds you normally disable them in the brand's companion app, or by switching the bud into a mode that locks the touch surface. In this comparison the question is mostly moot: the Koss BT115i uses a physical in-line remote, and the OHAYO A10 ships with no touch control at all, so there is nothing to turn off.
Wireless earbuds send control signals over Bluetooth, so a press or tap on the bud or remote is interpreted by your phone as play/pause, skip or answer/end. That is by design — the Koss BT115i's in-line remote is built to do exactly this for calls, volume and track skipping.
It depends on where you study. The OHAYO A10 offers AI noise isolation with passive cancelling aimed at snoring, traffic and appliance hum, which suits noisy dorms and shared rooms. The Koss BT115i lists noise control as "None," so it is better for quiet rooms where you mainly want simple controls and a secure fit.
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.
See also: YINYOO HiFi IEM vs SoundMAGIC E80C, Redzoo Headphones V5.0 vs Wentronic Y01, AFGHOA 3.5mm vs Kanayu 100, headphones rf vs bluetooth