We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-25 · 7 min read · Independent comparison
If you want a classic flat-head earbud with a long cable, a big dynamic driver and the freedom of a 3.5mm jack, choose FAAEAL Iris Ancestor in-Ear; if you need a USB-C earbud with an inline mic and play/pause control for calls, meetings and gaming on a modern device, choose Monoprice USB-C.
• FAAEAL Iris Ancestor in-Ear — biggest strength: a 15.4mm dynamic PET driver in a lightweight flat-head shell, tuned for a balanced signature with a lot of bass, on a generous 1.5m cable.
• FAAEAL Iris Ancestor in-Ear — biggest trade-off: it is a 3.5mm wired bud with no USB-C option, so phones and tablets without a headphone jack need an adapter, and there is no inline microphone on the no-mic version.
• Monoprice USB-C — biggest strength: native USB-C connection that feeds 10mm NdFeB dynamic drivers, plus a built-in mic and a push-button control for play/pause and calls.
• Monoprice USB-C — biggest trade-off: it only works on USB-C audio devices — anything with a 3.5mm jack is out — and it lists no active noise control, just the passive fit of the tips.
• Pick FAAEAL Iris Ancestor in-Ear if you want a cheap-feeling-free, fatigue-light flat-head bud for long listening on older phones, MP3 players, PSPs and computers.
• Pick Monoprice USB-C if your daily driver is a USB-C phone, tablet, laptop or handheld gaming device and you want one plug for music and calls.
The Iris Ancestor is a deliberately old-school design. FAAEAL built it around a 15.4mm dynamic driver with a PET diaphragm, and that large diaphragm is the reason the tuning leans warm: plenty of low end, a midrange that stays present, and highs that are there without being sharp. Impedance is 32 ohm, sensitivity is 106 dB, and the rated frequency range runs the full 20 Hz – 20 kHz. In practice, 32 ohm and 106 dB means it will get loud off almost anything — a phone, a laptop headphone jack, a cheap MP3 player — without needing a dedicated amp.
The other half of the story is comfort and cable. This is a flat-head, in-ear bud that sits at the opening of the ear rather than sealing deep in the canal, and FAAEAL describes it as extremely lightweight — around 0.02 kg — with an ergonomic shape meant to avoid ear pain over long sessions. The cable is about 1.5m (±3cm), which is noticeably longer than typical earbud cables and genuinely useful if your source sits across a desk or in a pocket while you move around. You can order it with or without a microphone, in black, gray or red, and there's a media control button on the cable.
Who should buy it? Someone who still lives on 3.5mm — an older smartphone, a computer, an iPad with an adapter, a PSP, an MP3/4 player — and wants a bass-forward but balanced bud for podcasts, YouTube and long background listening. The mic version covers calls and voice chat, and the flat-head fit is a real advantage for people who find deep-sealed IEMs uncomfortable after an hour.
Who should skip it? If your phone has no headphone jack and you don't want to carry a dongle, this isn't the tidy answer. If you need maximum isolation on a plane or a train, a flat-head bud won't seal like a proper IEM — noise control here is sound isolation only, and it depends entirely on how the bud sits in your ear.
Monoprice's take is built for the port that replaced the headphone jack. It's a USB-C wired earbud with 10mm NdFeB dynamic drivers, 16 ohm impedance and the same 20 Hz – 20 kHz rated range. Monoprice's own framing is that USB-C delivers more power to the earbuds than a traditional 3.5mm port, which lets those 10mm drivers push deeper bass and clearer highs. That's a fair description of the design intent: a digital-friendly connection feeding a smaller but well-driven driver.
The feature set is squarely aimed at people who talk as much as they listen. There's a built-in microphone for calls and meetings, and a single push-button that handles play/pause for music and answer/end for calls. No app, no settings menu — one button. The housing is plastic, black, in-ear, and Monoprice leans hard on the "ultra lightweight" claim, promising minimal fatigue over extended listening. It also lists wide compatibility with laptops, tablets, smartphones and gaming devices, and comes with a 1-year warranty.
Buy it if your whole setup is USB-C: a modern Android phone, an iPad, a USB-C laptop for work calls, or a handheld gaming device. The mic-plus-button combo makes it a genuine one-cable solution for a work-from-anywhere day — music in the morning, a Zoom call at noon, a game at night, without swapping hardware. The 16 ohm impedance also means it's easy to drive from a phone or tablet output.
Skip it if you own anything that only takes a 3.5mm plug, or if you want active noise cancellation. Monoprice lists no noise control at all here, so isolation is whatever the tips and fit give you. And if you're after a specific tuning signature, note that this is a bass-and-clarity presentation rather than a reference-flat one.
Side-by-Side: Which Should You Choose?
• Best for older devices and 3.5mm jacks → FAAEAL Iris Ancestor in-Ear. Phones, computers, MP3/4 players, PSP, iPad — it covers all of them with a standard 3.5mm plug.
• Best for cable length and desk use → FAAEAL Iris Ancestor in-Ear. Roughly 1.5m of cable versus the short cable typical of earbuds.
• Best for calls and meetings out of the box → Monoprice USB-C. Built-in mic plus a play/pause and answer/end button in one inline control.
• Best for bass from a large driver → FAAEAL Iris Ancestor in-Ear. A 15.4mm PET dynamic driver is the bigger diaphragm of the two.
• Best for easy driving on low-power sources → Monoprice USB-C. 16 ohm impedance is the lower, easier-to-drive figure here.
• Best for long-session comfort with a loose fit → either, honestly. Both are built around lightweight plastic shells and minimal fatigue; FAAEAL uses a flat-head shape, Monoprice a standard in-ear tip.
• Best for isolation → neither, strictly speaking. FAAEAL offers sound isolation through fit; Monoprice lists no noise control. If isolation is your priority, that's a different category of product.
I'd buy the Monoprice USB-C for myself, because my phone, tablet and laptop are all USB-C and the inline mic and single button mean one cable covers music, calls and gaming without an adapter in my pocket. The 10mm NdFeB drivers and 16 ohm impedance are a sensible match for a phone or laptop output, and the one-year warranty is a small but real reassurance.
That said, if you're still on 3.5mm — or you want the longer cable and the bigger 15.4mm driver — the FAAEAL Iris Ancestor in-Ear is the more flexible pick for the money. In my opinion, the deciding question isn't which sounds better on paper; it's which port is on the device you actually use every day.
On paper it has the larger driver — 15.4mm versus 10mm — and FAAEAL tunes it with a lot of low end. Monoprice argues USB-C delivers more power to its 10mm drivers for deeper bass. Both are bass-forward designs; the bigger diaphragm favors FAAEAL, the higher-power connection favors Monoprice.
No. The Monoprice set is USB-C only. If your device has a 3.5mm headphone jack and no USB-C audio support, you need the FAAEAL Iris Ancestor in-Ear instead — or a USB-C adapter, which adds bulk and another failure point.
No active noise cancellation on either. The FAAEAL lists sound isolation, which is passive and depends on fit, and the Monoprice lists no noise control at all. For blocking out a plane or train, neither is the right tool.
The Monoprice USB-C, in my opinion — it has a built-in microphone and a play/pause button that doubles as answer/end, so it works for meetings without extra gear. If you buy the FAAEAL, make sure you pick the version with the HD microphone.
Ignore price for a second and check your ports: USB-C-only devices point to Monoprice, anything with a 3.5mm jack points to FAAEAL. Then check the current price on Amazon for both and let that break the tie.
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: Gumdrop Cases DropTech On-Ear vs QearFun USB C Kids, Monoprice Semi-Open Over Ear vs AOSHIDA EarAcoustic STA HI, PLT Poly vs Koss CS300-USB: On Ear Headset