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 plug-and-play wired audio on a modern USB-C iPhone or any USB-C phone, choose ASKUBSKU USB C Earbuds; if you already own a favorite pair of 3.5mm headphones and need to connect them to a Lightning iPhone, choose Untvie Apple MFi Certified. These two products solve completely different problems, and picking the wrong one means the cable simply won't fit your phone.
• ASKUBSKU USB C Earbuds — biggest strength: a complete wired listening solution in one box: USB-C plug, built-in mic, in-line remote volume control, and a dynamic driver rated 20 Hz–20,000 Hz. Nothing else to buy.
• ASKUBSKU USB C Earbuds — biggest trade-off: it only works with USB-C devices, so Lightning iPhones (iPhone 14 and older) are out, and the sound-isolation design means you won't get active noise cancellation.
• Untvie Apple MFi Certified — biggest strength: an Apple MFi certified Lightning-to-3.5mm adapter that lets you keep using the wired headphones you already love, with no error pop-ups and 48 kHz / 24-bit lossless output.
• Untvie Apple MFi Certified — biggest trade-off: it is an adapter, not headphones, and it explicitly does not support making calls — so no mic, no phone conversations.
• Who each pick is for: ASKUBSKU for anyone who wants one cable-free-of-hassle USB-C earbud set with a mic for calls; Untvie for Lightning iPhone owners who want to revive existing 3.5mm headphones for music, movies and car aux use.
The ASKUBSKU USB C Earbuds are built around a single idea: give you everything you need for wired listening in one package. The USB-C connector plugs straight into modern phones and tablets, so there's no dongle, no adapter, no second purchase. The in-line remote handles volume, play/pause and track skipping, and the built-in microphone is there for calls — the brand specifically notes reduced noise interference on calls so conversations stay clear.
Who should buy it: anyone with a USB-C phone or tablet who wants wired earbuds with a mic and volume control and doesn't want to think about compatibility. It's also a sensible pick if you're tired of charging earbuds — wired means no battery to manage.
Who should skip it: if you own a Lightning iPhone (iPhone 14 or earlier), this won't connect without an adapter. And if you want active noise cancellation rather than passive sound isolation, this isn't that product — the isolation comes from the in-ear seal, not electronics.
Untvie Apple MFi Certified: Who It's For
The Untvie Apple MFi Certified adapter is a different animal entirely. It's a Lightning-to-3.5mm dongle that lets you plug standard 3.5mm headphones into an iPhone. The headline feature is the Apple MFi certification, which the brand says guarantees compatibility and prevents the "this accessory is not supported" error message that plagues cheap uncertified dongles. That certification is the whole reason to choose this over a generic adapter.
Inside, the adapter uses a 100% copper wire core for stable signal transmission and supports up to 48 kHz / 24-bit lossless output — a genuinely high-fidelity ceiling for a small converter. It's compatible across a long list of Lightning iPhones, from the 14 series all the way back to the 6 and 6s, plus iPad and iPod touch, and it works with all iOS versions with no extra software. You just plug in and listen.
There's one big caveat you need to know before buying: it does not support making calls. This is a music, video and car-aux adapter, not a headset adapter. The glossy finish and tiny 0.01 kg weight make it easy to leave in a car or bag, and the two-pack means you can keep one at home and one at the office or in the vehicle. A one-year manufacturer warranty backs it up.
Who should skip it: USB-C phone owners (it doesn't fit), and anyone who needs to make calls through their headphones. If you need a mic, this is the wrong tool.
Side-by-Side: Which Should You Choose?
• Best for calls and voice chat → ASKUBSKU USB C Earbuds. The built-in mic and remote are designed for picking up and hanging up calls.
• Best for reusing existing 3.5mm headphones → Untvie Apple MFi Certified. That's its entire purpose.
• Best for USB-C phones and tablets → ASKUBSKU USB C Earbuds. No adapter needed.
• Best for Lightning iPhones (iPhone 14 and older) → Untvie Apple MFi Certified. The ASKUBSKU earbuds won't fit those ports.
• Best for lossless high-fidelity listening → Untvie Apple MFi Certified. Its 48 kHz / 24-bit output spec is the higher-resolution figure of the two.
• Best all-in-one purchase → ASKUBSKU USB C Earbuds. Earbuds, mic, remote and carry bag arrive together; the Untvie is an adapter only.
• Best for car aux and travel → Untvie Apple MFi Certified. Plug it into a car stereo or home audio and use your own headphones anywhere.
• Best if you want zero battery management → either. Both are fully wired, so there's nothing to charge.
In my opinion, the right buy depends entirely on the port on your phone, not on the products themselves. If you have a USB-C phone and want earbuds you can actually talk on, I'd buy the ASKUBSKU USB C Earbuds — the mic, remote volume control and complete out-of-box package make it the more useful single purchase for most people. I'd choose the Untvie Apple MFi Certified only if you're on a Lightning iPhone and already own 3.5mm headphones you love, and only if you don't need to make calls. Check the current price on Amazon before deciding, since the value math shifts depending on whether you're buying one item or replacing headphones you already own.
FAQ
how to use headphones for iphone
how to use wired headphones for iphone 15
The iPhone 15 uses USB-C, so USB-C wired earbuds plug directly into the port with no dongle. Just connect and the phone routes audio automatically. A Lightning adapter like the Untvie won't fit an iPhone 15.
how to use wired headphones for iphone
Match the connector to the port. USB-C iPhones take USB-C earbuds directly; Lightning iPhones need a Lightning-to-3.5mm adapter such as the Untvie, which supports music and video but not phone calls.
how to use wired headphones for iphone 16
The iPhone 16 is USB-C, so wired USB-C earbuds connect straight in and work immediately. If you want to use old 3.5mm headphones instead, you'd need a USB-C-to-3.5mm adapter — the Untvie model here is Lightning-only and won't work.
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See also: INFURTURE USB C Headphones vs esbeecables Apple MFi Certified, MOYAWSDGN Earbuds vs Smilebridge Apple MFi Certified, basecolors 5 vs tiavalmax Apple MFi Certified: USB C