We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-20 · 6 min read · Independent comparison
If you want to keep using your own wired headphones while fast-charging your phone at the same time, choose ABCPOW USB C; if you need a complete set of USB-C wired earbuds with a mic for calls and no battery to worry about, choose Jiunai USB C.
• ABCPOW USB C — biggest strength: a 2-in-1 dongle that splits one USB-C port into a 3.5mm audio jack plus a 60W PD charging port, so you can listen and charge simultaneously. Biggest trade-off: it does no good unless you already own a 3.5mm headphone you like, and it explicitly does not support data transfer.
• Jiunai USB C — biggest strength: a finished product — actual in-ear earbuds with 10mm dynamic drivers, a built-in mic, magnetic earpieces and a braided cable, ready to use with zero extra gear. Biggest trade-off: it's a single-purpose listening device; it can't pass charging through to anything.
• Who ABCPOW is for: people with a favorite pair of wired headphones who keep running out of USB-C ports on a phone or laptop.
• Who Jiunai is for: anyone who wants a simple, always-works wired headset for calls, podcasts and commuting.
• In my opinion: these two barely compete — one is an adapter, the other is a headset. Pick based on whether you already own headphones or need a pair.
The ABCPOW adapter is a small purple 5.9-inch (15cm) cable that turns a single USB-C port into two things: a 3.5mm aux jack and a USB-C PD charging input. That second port is the whole point. It supports PD 3.0 fast charging up to 60W, and the manufacturer rates it at roughly 20V/3A — which the data sheet translates into a phone going from 0% to about 89% in 30 minutes, an iPad Pro reaching roughly 64% in the same window, and a MacBook Air hitting about 50%. Those are the kind of numbers that matter if you stream music for hours on a phone that's also your navigation and hotspot.
Audio-wise, it isn't a passive pass-through. There's a Smart DAC chip inside, with low power draw, stable decoding, and support for up to 24-bit/96kHz sampling. It's also designed for the practical stuff: headphone in-line controls for volume, pause and calls still work through the adapter, and it's pitched at phones and tablets that dropped the headphone jack.
Who should buy it? Someone with a trusted pair of wired over-ear or in-ear headphones, a Samsung Galaxy or Google Pixel owner, or a laptop user who wants to plug into a 3.5mm speaker while topping up. Who should skip it? Anyone without a 3.5mm device — you'd be buying an adapter for hardware you don't own. Also skip it if you expect to move files or use it as a data cable; it doesn't do that. One caveat worth repeating from the specs: some newer phones may not negotiate quick-charge protocols over the splitter, and using a proper USB-C PD wall charger is what gets you the fast rates.
Jiunai takes the opposite approach. Instead of adapting what you have, it sells you the whole listening experience in one package. These are USB-C in-ear headphones with 10mm dynamic drivers, a wired button control unit, and a built-in microphone — so calls, volume and track control all happen on the cable. There's a Smart DAC chip here too, which is what makes "plug and play" realistic across the iPhone 15/16/17 line, Galaxy S26 down through S23, Pixel 10 and 9, iPad Pro/Air and MacBook.
The spec sheet gives real numbers: 32 ohm impedance, sensitivity of 114dB, and a frequency response extending to 20,000Hz. In plain terms, that's an easy-to-drive, fairly sensitive set of buds — the kind that gets loud off a phone without needing a headphone amp. The design details are aimed squarely at daily life: magnetic earpieces that snap together and hang around your neck like a necklace, a nylon-braided cable for tangle resistance, three sizes of ear tips, and a small zippered carry case. Sound isolation is listed as a feature, which is a polite way of saying the seal helps block train and café noise.
Who should buy it? Commuters, students and anyone who takes a lot of calls — the mic plus button control covers both. If battery anxiety is your thing, wired earbuds are the answer. Who should skip it? If you already love your current headphones and just need to charge and listen at once, this doesn't solve that problem — there's no charging pass-through. And if you want over-ear cups rather than in-ear buds, this isn't the shape.
• Best for listening while charging → ABCPOW USB C. It's the only one of the two with a dedicated PD charging port.
• Best for phone calls and voice chat → Jiunai USB C. A built-in mic with on-cable button control is the point; ABCPOW relies on the mic of whatever headphone you plug in.
• Best for people who already own good wired headphones → ABCPOW USB C. You keep the sound you like and just regain the jack.
• Best for a complete, out-of-the-box solution → Jiunai USB C. Tips, case, cable, mic — nothing else to buy.
• Best for laptop and tablet users → ABCPOW USB C. Its 60W PD support and MacBook/iPad charging examples make it the more versatile desk accessory.
• Best for commuting and noisy environments → Jiunai USB C. The in-ear seal and sound isolation are designed for exactly that.
• Best for audio quality flexibility → ABCPOW USB C, in my opinion — 24-bit/96kHz decoding lets a good headphone do more of the work.
• Best for low-maintenance travel → Jiunai USB C. Magnetic buds, braided cable and a zip case beat a loose dongle in a bag.
If I had to pick one for myself, I'd take the Jiunai USB C earbuds. Here's my reasoning: it's a finished product with a mic, controls, magnetic storage and a case — I can use it immediately on a phone, tablet or laptop, and I never think about charging it. The ABCPOW adapter is genuinely clever and I'd happily recommend it to anyone with a beloved pair of wired headphones who's tired of choosing between listening and charging. But if you're starting from nothing, Jiunai gives you more usable product for the job of actually listening. Check the current price on Amazon before you decide — that's the one thing that could tip the scale either way.
They solve different problems. ABCPOW splits one USB-C port into a 3.5mm jack plus 60W PD charging, while Jiunai is a complete set of wired earbuds with a mic. Neither is "better" — pick based on whether you already own headphones.
Yes. The data sheet lists iPhone 15/16/17, Samsung Galaxy S26 through S23, Google Pixel 10 and 9, iPad Pro/Air and MacBook, all via a plug-and-play USB-C connection with a built-in DAC.
No. Jiunai is a listening-only device with no charging pass-through. If charging and listening at the same time is your priority, the ABCPOW adapter is the one designed for that.
It works with 3.5mm headphones, earphones, headsets and speakers, and in-line volume, pause and call controls on the headphones keep working. It does not support data transfer, and some newer phones may not fast-charge through it unless you use a proper USB-C PD wall charger.
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.