We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-30 · 8 min read · Independent comparison
If you want a complete, ready-to-use pair of iPhone earbuds with a mic and inline volume control, choose SUPVOL iPhone; if you need a certified Lightning-to-3.5mm adapter so you can keep using your own wired headphones, choose Seulliya Apple MFi Certified. These two products get confused because both show up in "wired earbuds for iPhone" searches, but they solve completely different problems. One is a finished headset. The other is a bridge between your iPhone's Lightning port and the headphones you already own.
• SUPVOL iPhone — biggest strength: a complete in-ear earbud set with a built-in mic, inline remote, volume control and a 20 Hz–20,000 Hz dynamic driver, sold as a 2-pack.
• SUPVOL iPhone — biggest trade-off: the connection process is unusual. It pairs over Bluetooth after you plug it in, so there's a first-time setup step rather than pure plug-and-play.
• Seulliya Apple MFi Certified — biggest strength: an MFi-certified Lightning adapter with a 32-bit RISC-V DAC chip (125MHz, 95dB SNR) that pushes up to 48kHz sampling to your own 3.5mm headphones.
• Seulliya Apple MFi Certified — biggest trade-off: it's a listening-only adapter. It does not support calls or mic functions, so it can't replace a headset.
• Choose SUPVOL iPhone if you want earbuds you can talk on.
• Choose Seulliya Apple MFi Certified if you already love a pair of wired headphones and just need to connect them to a Lightning iPhone.
The SUPVOL iPhone is a 2-pack of white in-ear earbuds built around a 3.5mm jack, but with a twist: it also uses Bluetooth. The flow described in the product details is specific — you turn on Bluetooth on your phone first, plug the earbuds in, wait for a beep and a pop-up window, then tap connect. If no window appears, you open the Bluetooth list, find the device named "Beats", and connect manually. After that first pairing, it reconnects automatically in roughly 2–8 seconds on later uses. That's worth knowing before you buy, because it isn't the instant-plug experience most people expect from a wired set.
Once connected, the package is genuinely complete. There's a remote on the cord that handles volume, playback and answering or ending calls with a pinch. The in-ear, rounded-tip design with a plastic enclosure is aimed at passive noise reduction, which helps in noisy rooms and on commutes. The dynamic driver covers a 20 Hz to 20,000 Hz range, and the tuning is described as driving bass with a tight midrange and precise treble — a mainstream, music-first sound rather than a flat monitor signature. You get two sets in the box, which is practical if you want one for a bag and one for a desk.
Compatibility is broad for older and mid-generation iPhones: iPhone 14, 14 Pro, 14 Pro Max, 14 Plus, 13 series, 12 series, SE, 11 series, XS Max, X, XR, 8, 8 Plus, 7 and 7 Plus, plus iPad and iPod. Note that nothing newer than the 14 series is listed, and the Lightning-era models dominate that list.
Who should skip it: people who want zero setup and zero pairing. If you want to plug in and hear sound immediately, or if you own a newer iPhone with USB-C, this isn't the right fit. Same if you hate the idea of a Bluetooth handshake for a wired-looking product.
Seulliya Apple MFi Certified: Who It's For
The Seulliya Apple MFi Certified is not earbuds at all — it's a Lightning-to-3.5mm headphone jack adapter. Its whole job is letting you plug ordinary wired headphones, earbuds, car aux cables or speakers into a Lightning iPhone or iPad. It's MFi certified, which means the chip inside is verifiable on Apple's official MFi site and, in practice, that's the part that matters most: certified adapters are the ones that avoid the "this accessory is not supported" pop-up errors that plague cheap uncertified dongles.
The audio side is where this adapter earns its place. It uses a 32-bit RISC-V DAC chip running at 125MHz with a 95dB signal-to-noise ratio and support for sampling rates up to 48kHz. In plain terms, that's a proper digital-to-analog conversion stage rather than a bare pass-through, and the design is explicitly aimed at minimizing distortion and noise. For music, podcasts and audiobooks, that translates to a cleaner, more consistent sound than a low-cost alternative typically delivers.
One limitation is stated clearly and it's important: this adapter is designed for listening and does not support call or mic functions. If your headphones have a mic, that mic won't work through it. You also can't take calls through it. That single fact is the main reason someone would pick the SUPVOL set instead.
Physically, it's a white adapter with a flexible TPE cable chosen for bend resistance, which is the failure point on most dongles — the joint where the cable meets the plug. It's plug-and-play with no apps or setup, and it works across a very long device list: iPhone 14 Pro, 14 Pro Max, 14, the 13/12/11/X/8/7 families, and a deep bench of iPads including multiple iPad Pro generations, iPad Air 1st through 3rd gen, iPad 4th through 9th gen, and iPad mini 1st through 5th gen.
Who should buy it: anyone who already owns wired headphones they love and refuses to give them up, plus drivers who want a car aux connection, gym-goers with wired buds, and home-office listeners who want a stable, no-fuss audio path.
Who should skip it: anyone who needs to make calls, use a headset mic, or wants earbuds included. There's no microphone here and no earbuds in the box.
• Best for phone calls → SUPVOL iPhone. It has a built-in mic and an inline remote for answering and ending calls. The Seulliya adapter explicitly does not support call or mic functions.
• Best for using your own headphones → Seulliya Apple MFi Certified. It converts Lightning to a standard 3.5mm jack, so whatever wired headphones you already own keep working.
• Best for audio conversion quality on paper → Seulliya Apple MFi Certified. The 32-bit RISC-V DAC (125MHz, 95dB SNR, up to 48kHz) is a specified conversion stage, while SUPVOL describes its sound in tuning terms rather than chip terms.
• Best for a complete out-of-the-box solution → SUPVOL iPhone. Two sets of earbuds, a mic, a remote and volume control, nothing else to buy.
• Best for car aux and speakers → Seulliya Apple MFi Certified. Plug it into the Lightning port and connect any 3.5mm device, including car aux inputs.
• Best for durability in daily pocket use → Seulliya Apple MFi Certified. The flexible TPE cable is specifically chosen for bend resistance, which is the usual weak spot on adapters.
• Best for setup simplicity → Seulliya Apple MFi Certified. It's plug-and-play with no pairing. SUPVOL requires a one-time Bluetooth connection before it works.
• Best for sharing or keeping a spare → it's a tie by design. SUPVOL ships as a 2-pack of earbuds; the Seulliya 1-pack is described as a value set that gives you a spare for your car, bag or home.
If I had to pick one, I'd buy the Seulliya Apple MFi Certified adapter. In my opinion, it does one job extremely well: it turns a Lightning iPhone into a proper 3.5mm headphone player with a certified chip and a specified DAC, and it works with the wired headphones I'd rather keep using. The TPE cable and plug-and-play behavior make it the lower-friction purchase for listening.
That said, I'd recommend the SUPVOL iPhone without hesitation to anyone who needs a microphone. The Seulliya adapter cannot handle calls, and that's a hard stop for a lot of buyers. If talking on your earbuds matters, the SUPVOL set is the only one of the two that solves it — just go in knowing you'll pair it over Bluetooth the first time.
FAQ
how to use headphones for iphone
how to use wired headphones for iphone 15
The iPhone 15 moved to USB-C, and neither product here lists iPhone 15 compatibility — the SUPVOL set tops out at the iPhone 14 series and the Seulliya adapter covers iPhone 14 down to 7. For an iPhone 15 you'd need a USB-C adapter or USB-C headphones instead.
how to use wired headphones for iphone
Plug the Seulliya adapter into the Lightning port, then plug your 3.5mm headphones into the adapter. No app or setup is required. Keep in mind the adapter is for listening only, so your headphone mic and call audio won't pass through it.
how to use wired headphones for iphone 16
The iPhone 16 uses USB-C, so a Lightning adapter won't fit. Neither the SUPVOL earbuds nor the Seulliya adapter lists iPhone 16 support. You'd need a USB-C to 3.5mm adapter or USB-C headphones for that model.
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