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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a splitter for USB-C headphones that keeps Hi-Fi audio and 60W PD charging running at the same time, choose Marsno USB C Splitter; if you need a 3.5mm jack adapter with a right-angle plug and a magnetic breakaway design for gaming and video, choose MTAKYI 2-in-1.
• Marsno USB C Splitter — biggest strength: a 1-in-2-out layout that feeds USB-C headphones and up to 60W PD charging simultaneously, with a Realtek DAC and noise-reduction circuitry for clean, stable sound.
• Marsno USB C Splitter — biggest trade-off: it only accepts USB-C headphones, it will not run two headphones at once, and it carries no video signal at all.
• MTAKYI 2-in-1 — biggest strength: the 90-degree L-shaped plug plus a magnetic connector that splits apart when you want it to and snaps back together when you don't.
• MTAKYI 2-in-1 — biggest trade-off: the audio side is a 3.5mm jack, so your existing USB-C earphones won't plug into it, and it's a chunkier 1.6-ounce accessory.
• Who each is for: Marsno for USB-C headphone owners who want one braided cable to cover charging and listening; MTAKYI for anyone with 3.5mm earphones who games or watches video in landscape.
The Marsno is built around one idea: your phone or tablet drops the 3.5mm jack, but your headphones are USB-C, and you're tired of choosing between power and sound. The adapter takes a single USB-C connection and fans it out into two female ports — one for USB-C audio, one for charging. That 1-in-2-out design is the whole point, and it's why this is a poor fit if you want to share music with a friend: the audio port is not meant for two headphones.
Inside, Marsno leans on a Realtek high-resolution decoding chip and noise-reduction circuitry, and the spec sheet calls out clear, stable, lossless output with no current noise. On the charging side there's an EJ899M chip managing Power Delivery up to 60W at 20V/3A, which is enough headroom to keep a phone, tablet or laptop topped up while you listen. One honest caveat from the data: Quick Charge may not be supported on some newer phones, so pair it with a PD wall charger for the best result. Also worth flagging — it will not pass any video signal, HDMI or VGA included.
MTAKYI 2-in-1: Who It's For
MTAKYI solves a different problem. If your headphones end in a standard 3.5mm plug — a gaming headset, an old pair of wired earbuds, a set you actually like — this adapter turns your USB-C phone into something those headphones can talk to, and charges it at the same time. The audio side uses a Smart DAC chip with low power draw, and the sheet quotes support for up to 24Bit/96KHz and 24Bit/48KHz sampling rates, which is the kind of decoding spec that keeps lossless sources sounding intact.
The two features that separate it from a generic dongle are physical. First, the plug is a 90-degree "L" shape, so the cable runs along the edge of your phone rather than sticking straight out — genuinely useful when you hold a phone in landscape for gaming or video, because the connector stops cutting into your palm or blocking the screen. Second, the magnetic connector: the two halves hold together firmly during use but pull apart when you want them to, and snap back to keep the cable from tangling when it's not in use.
Charging is PD up to 60W, and the spec sheet gives concrete numbers — an iPhone 15 Pro Max charged to 60% in 30 minutes, a Samsung to 89%, an iPad Pro to 64%, and a MacBook Air to 50% over the same window. Same caveat as the Marsno: Quick Charge may not work on some new phones, so use a USB-C wall charger. Buy it if you're on 3.5mm headphones, you play games or watch video in landscape, and you like the magnetic trick. Skip it if your headphones are USB-C — the jack simply won't take them — or if you want the smallest, lightest possible dongle, since this one weighs 1.6 ounces. It ships with a 12-month warranty.
Side-by-Side: Which Should You Choose?
• You own USB-C headphones → Marsno USB C Splitter. Its female audio port is USB-C only.
• You own 3.5mm headphones or a gaming headset → MTAKYI 2-in-1. That's the whole reason its audio port exists.
• You want the cleanest possible audio path from a USB-C source → Marsno USB C Splitter, with its Realtek decoding chip and noise-reduction design.
• You want a cable that stows without tangling → MTAKYI 2-in-1. The magnetic halves click together for storage.
• You want the lightest, most pocketable option → Marsno USB C Splitter at 5 x 0.98 x 0.2 inches.
• You want the longest warranty coverage → Marsno USB C Splitter, backed by 18 months versus MTAKYI's 12.
• You need video out of any kind → neither. The Marsno explicitly passes no video signal, and no video claim appears for the MTAKYI.
In my opinion, the deciding question is what's already in your bag. If your headphones are USB-C, I'd buy the Marsno USB C Splitter — the Realtek DAC, the noise-reduction design, the 60W PD ceiling and the 18-month warranty make it the more convincing package for that use case. If your headphones are 3.5mm, I'd buy the MTAKYI 2-in-1 instead, because the right-angle plug and magnetic breakaway are real, everyday conveniences that a plain dongle doesn't give you. Neither is universally better; match it to your headphone plug and you'll be happy. Check the current price on Amazon before you commit, since both are inexpensive enough that the gap rarely matters.
No. They solve opposite problems. Marsno takes USB-C headphones and adds charging; MTAKYI takes 3.5mm headphones and adds charging. If you buy the wrong one, your headphones physically won't fit.
Can I use two headphones with the Marsno USB C Splitter?
Both support Power Delivery up to 60W, and both note that Quick Charge may not work on some newer phones. Use a PD or USB-C wall charger, and you'll get the fast-charging behavior the spec sheets describe.
If you game in landscape with 3.5mm headphones, the MTAKYI 2-in-1 is the better fit thanks to its 90-degree plug. If your gaming headset is USB-C, the Marsno is the one that will actually accept it — though neither passes video, so screen mirroring isn't an option.
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