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If you want a tiny, no-hassle way to keep using your favorite wired earbuds or headset on a modern USB-C phone or laptop, choose JSAUX USB C; if you need a complete set of over-ear headphones with a mic and both connection types in the box, choose MartiAudio Over-Ear Headphones. That's the whole decision in one line. Everything below is just the reasoning.
• JSAUX USB C — biggest strength: a Smart DAC chip that converts digital audio to analog at up to 16Bit/48kHz, so you keep the sound signature of the headphones you already own.
• JSAUX USB C — biggest trade-off: it's an adapter, not headphones. No drivers, no ear cups, no cable of its own beyond the dongle body.
• MartiAudio Over-Ear Headphones — biggest strength: 2-in-1 connectivity. A gold-plated 3.5mm plug plus an integrated USB-C to 3.5mm female adapter, so one pair covers old and new devices.
• MartiAudio Over-Ear Headphones — biggest trade-off: they're wired, so you're physically tethered, and the around-ear design is bulkier to carry than a dongle.
• Pick JSAUX USB C if you already love a specific pair of 3.5mm headphones and just need to bridge them to USB-C.
• Pick MartiAudio Over-Ear Headphones if you want the headphones and the adapter in a single purchase, with a built-in mic for calls.
The JSAUX USB C is a USB-C to 3.5mm AUX audio adapter, and that's the entire point of it. It plugs into a USB-C port on a device that has no headphone jack, and gives you back a 3.5mm female port. From there, your own headphones, headset or speaker work exactly as they always did. The function keys on your headset still handle calls, volume and pause — provided the headset supports it.
The component doing the real work is the Smart DAC chip. It converts the digital audio signal coming out of your phone, tablet or laptop into an analog signal your headphones can actually play, and it does so with low power draw and what JSAUX describes as stable decoding performance at a maximum of 16Bit/48kHz. In practical terms, that means your existing headphones sound like themselves rather than like a compromised afterthought.
Compatibility is broad: iPhone 17, 16 and 15 families, Galaxy S24 through S8, Note 20 down to Note 8, iPad Pro, iPad mini 6, MacBook, Pixel 9/8/7/6, and a long list of Huawei and OnePlus models. Two compatibility notes matter, though. The 3.5mm port is CTIA, so OMTP, TS and mic-only TRS devices are out. And if your USB-C device already has a 3.5mm jack — some Galaxy and iPad Pro models — the adapter may not support phone calls or music control.
Who should buy it: anyone with a good pair of 3.5mm headphones and a jackless phone, plus people who want one small dongle in a bag pocket instead of a second set of headphones. The physical package is tiny — roughly 0.71 x 0.39 x 0.2 inches and about 9 grams — with a matte grey finish, metal-coated connectors and a strain relief rated to 15,000+ bends.
Who should skip it: if you don't already own 3.5mm headphones you like, or you need a microphone in the box, this isn't your product. Buy headphones instead.
The MartiAudio MA569 is the opposite kind of purchase. Instead of adapting what you own, it replaces it — and it throws the adapter in anyway. You get a standard gold-plated 3.5mm plug on the headphone cable, plus an integrated USB-C to 3.5mm female adapter. So the same pair works on a laptop or PC with a headphone jack and on a USB-C phone or tablet, without you hunting for a dongle.
The audio hardware is a 40mm dynamic driver with a 20Hz–20kHz frequency range, 40 ohm impedance and 94dB sensitivity. That impedance figure is worth pausing on: 40 ohm is a friendly load, the kind of number that plays fine from a phone or laptop output without a separate amplifier. The 20Hz–20kHz range covers the full audible spectrum, and MartiAudio describes the tuning as crisp highs, detailed mids and deep bass.
The cable is braided and carries a high-definition inline microphone plus +/- volume buttons. That combination is what makes these usable for hands-free calls and remote work, not just music. The ear cushions are protein leather over an around-ear design, with a padded, fully adjustable headband. Around-ear cups naturally seal against ambient noise, and MartiAudio lists sound isolation as the noise-control approach here — no active noise cancellation, just physical sealing.
Build details include reinforced metallic joints, a matte black finish, and a listed 2-year manufacturer warranty. Weight is 7.68 ounces — noticeably more than a dongle, and something you'll feel on a long commute, but normal for over-ear cans. No charging, no pairing, no latency, since it's wired.
Side-by-Side: Which Should You Choose?
• Best for reusing headphones you already own → JSAUX USB C. It exists purely to convert USB-C to 3.5mm.
• Best for a complete headphones purchase → MartiAudio Over-Ear Headphones. Drivers, cable, mic and adapter all included.
• Best for calls → MartiAudio Over-Ear Headphones. The inline microphone is built in; JSAUX only enables mic functions if your headset already has one and your device supports it.
• Best for portability → JSAUX USB C. About 9 grams and under an inch on its longest side.
• Best for long listening sessions → MartiAudio Over-Ear Headphones. Protein leather cushions and an adjustable padded headband are designed for extended wear.
• Best for physical noise isolation → MartiAudio Over-Ear Headphones. Around-ear cups seal; JSAUX provides none on its own.
• Best for audio specs you can point to → MartiAudio Over-Ear Headphones. 40mm dynamic drivers, 20Hz–20kHz, 40 ohm, 94dB.
• Best for compatibility breadth on the adapter side → JSAUX USB C. The device list spans iPhone, Galaxy, Pixel, Huawei, iPad and MacBook.
In my opinion, most people shopping this comparison should buy the MartiAudio Over-Ear Headphones. Not because the JSAUX adapter is weak — for its specific job it's well thought out — but because the MartiAudio pair solves the underlying problem completely. You get headphones, a mic, a braided cable, a 3.5mm plug and the USB-C adapter, so you're covered whichever device you pick up. I'd only steer you to the JSAUX USB C if you're genuinely attached to a pair of 3.5mm headphones you already own and want to keep using them. That's a real scenario, and for it the JSAUX is the cleaner answer. Otherwise, one purchase beats two.
FAQ
How to use usb c headphones on mac
How to use usb c headphones on android phone
Connect the USB-C plug directly to the phone's USB-C port. The MartiAudio set includes an integrated USB-C to 3.5mm female adapter for exactly this. With the JSAUX dongle, plug it in first, then connect your 3.5mm headphones. JSAUX lists Galaxy S24 through S8, Note 20 through Note 8, and Pixel 9/8/7/6 as compatible.
How to use usb c headphones on android
Same physical step as above, but note the caveats. The JSAUX adapter's 3.5mm port is CTIA, and OMTP, TS and mic-only TRS devices aren't supported. Also, if your USB-C phone already has a 3.5mm jack, JSAUX warns the adapter may not support phone calls or music control on some Galaxy and iPad Pro models.
How to use usb c headphones on ps5
Neither product lists PlayStation 5 in its compatibility data, so I can't confirm either one works there. On PS5, USB-C audio support depends on the console and the specific device. If console use matters to you, check the manufacturer's compatibility notes before buying.
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