We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-25 · 6 min read · Independent comparison
If you want a wired, zero-latency connection that never needs a charge and works with virtually any USB-C device, choose COOYA USB C Open; if you need wireless freedom, a charging case, and a waterproof rating for sweaty workouts, choose YYFEIDBFEO Open Ear Earbuds.
• COOYA USB C Open — biggest strength: a wired USB-C plug that pairs instantly with almost any modern phone, tablet or laptop, with no battery to run down and no pairing to babysit.
• COOYA USB C Open — biggest trade-off: it's tethered to your device by a cable, has no water-resistance rating, and no active noise cancellation.
• YYFEIDBFEO Open Ear Earbuds — biggest strength: true wireless Bluetooth 5.4 with a charging case, roughly 6–7 hours per charge, and an IPX7 waterproof rating for sweat and rain.
• YYFEIDBFEO Open Ear Earbuds — biggest trade-off: it depends on battery and pairing, so you're charging a case and managing a Bluetooth connection instead of just plugging in.
• Pick COOYA if you want a plug-and-play wired set for calls, studying, laptops and small ears — no charging ever.
• Pick YYFEIDBFEO if you want wireless earbuds for running, gym sessions and commuting in bad weather.
The COOYA USB C Open is a wired open-ear headphone built around a USB-C connector. That single design choice defines everything about it. There's no battery, no Bluetooth pairing, no charging case to remember — you plug it into a USB-C port and it works. The brand states plug-and-play compatibility with roughly 99% of USB-C devices, and the list is long: iPhone 15/16/17 family, Samsung Galaxy S and A series, iPad, MacBook, Surface, OnePlus, Pixel, Motorola and more. For anyone who has ever fumbled with a Bluetooth menu while a call was ringing, that's the appeal.
The fit is the other half of the story. A rotatable silicone earhook holds the earpiece over — not inside — your ear, so you hear your music or call while still hearing traffic, a colleague, or your surroundings. The brand explicitly markets the open-ear design as better ear protection for kids, and the age range covers both adults and kids. It's aimed at small ears, which is a real problem for people who find standard buds pop out constantly. The 15 mm dynamic driver, 32-ohm impedance, 105 dB sensitivity and 20 Hz–20 kHz range are all standard, sensible numbers for a wired headset — nothing exotic, but nothing that suggests it will struggle with podcasts, calls or music.
Controls live on an in-line module: a built-in microphone, volume control, play/pause, track skip, and answer/end calls without touching your phone. There's also a small clip for fixing the mic while talking, plus a zipper carrying case to keep it protected from scratches and dust.
Who should buy it: commuters and students who want something that just works, parents buying for kids who need situational awareness, small-eared users, and anyone who primarily listens on a laptop, tablet or USB-C phone and is tired of charging earbuds. Who should skip it: anyone who wants to move freely without a cable, needs water resistance for heavy sweating or rain, or wants active noise cancellation — this model has none.
The YYFEIDBFEO Open Ear Earbuds are the wireless counterpart to everything above. They run Bluetooth 5.4 with a rated range of up to 10 metres, and the brand pitches quick pairing and a stable connection that holds up in busy areas — plus easy switching between phone, tablet and laptop. For anyone who hates cables snagging on a jacket zipper or a gym machine, this is the whole point.
Battery is the headline feature. The brand rates 6–7 hours of playtime per charge (the spec sheet lists 6.5 hours average), extended by the portable charging case, with a 1–1.5 hour Type-C fast charge and 100 hours of standby. In practice that means a week of commutes between trips to a wall outlet for many people. The earbuds themselves use an ergonomic earhook to stay put during vigorous activity, and they're built from plastic in a Royal Blue finish — a more expressive look than the plain Black COOYA.
Durability is where these pull clearly ahead on paper: an IPX7 waterproof rating, which the brand says handles sweat and rain during intense workouts. That's a meaningful difference for runners and gym-goers. Audio specs are comparable to the COOYA — a dynamic driver, 105 dB sensitivity, 20 Hz–20 kHz — though impedance is lower at 16 ohms, which is typical for battery-powered earbuds. Controls are touch-based: tap to play/pause, skip tracks, answer calls and trigger voice assistants. There's also a 2-year manufacturer warranty listed.
Who should buy it: runners, gym users, cyclists and commuters who want wireless freedom, weather resistance and a charging case that keeps them topped up. Who should skip it: anyone who wants to never think about charging, prefers physical buttons over touch controls, or needs a wired connection for a specific device without Bluetooth.
Side-by-Side: Which Should You Choose?
• Best for battery life and untethered use → YYFEIDBFEO Open Ear Earbuds. Roughly 6–7 hours per charge plus a charging case and 100-hour standby.
• Best for workouts and wet weather → YYFEIDBFEO Open Ear Earbuds. The IPX7 rating is the deciding factor; the COOYA has no water-resistance rating.
• Best for laptops, tablets and USB-C phones → COOYA USB C Open. Broad plug-and-play USB-C compatibility, with a specific note that MacBook users may need to select USB as the sound input/output device.
• Best for small ears and kids → COOYA USB C Open. The rotatable silicone hook and small-ear focus, plus the brand's child-safety framing, fit that use case better.
• Best for calls with physical controls → COOYA USB C Open. An in-line volume/playback module, built-in mic and a mic clip beat tapping a touch surface for many people.
• Best for freedom of movement and touch controls → YYFEIDBFEO Open Ear Earbuds. Bluetooth 5.4 with up to 10 m range and tap gestures.
• Best for a low-maintenance travel set → COOYA USB C Open. The included zipper case protects it, and there's nothing to charge before a trip.
In my opinion, most people should buy the YYFEIDBFEO Open Ear Earbuds — the combination of Bluetooth 5.4, a charging case with roughly 6–7 hours per charge, and an IPX7 waterproof rating covers the widest range of real-world use, especially if you run, train or commute in the rain. I'd only steer you to the COOYA USB C Open if your priority is never charging anything, working mainly from a laptop or USB-C phone, or buying for a kid or small-eared user who needs a secure, simple wired fit. Decide which of those two problems is actually yours, and the choice makes itself.
No. They're wired, connecting through a USB-C plug rather than Bluetooth, so they never need charging or pairing — but you're always attached to your device by a cable.
The brand rates them IPX7, which means they're designed to withstand sweat and rain during workouts. The COOYA USB C Open has no water-resistance rating listed, so I wouldn't treat it as a workout-in-the-rain option.
On paper they're close: both use a dynamic driver with 105 dB sensitivity and a 20 Hz–20 kHz range. The COOYA lists 32-ohm impedance versus 16 ohms for the YYFEIDBFEO, but the bigger practical difference is wired versus wireless, not raw driver specs.
I don't publish prices here, since they change often. Use the "Check latest price on Amazon" button on this page to see the current cost of each before you decide.
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