We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-23 · 7 min read · Independent comparison
If you want the adapter that splits one USB-C port into a 60W PD charging port plus a wired 3.5mm jack with the higher-resolution DAC and a two-pack in the box, choose SIXSIM USB-C Headphone Adapter; if you need MFi-certified iPhone/iPad coverage with aluminium-and-TPE build quality and the widest device list across Pixel, Galaxy and iPad, choose Matsusho 2.
• SIXSIM USB-C Headphone Adapter — biggest strength: a 2-in-1 splitter that charges over PD at up to 60W while you listen, with DAC support for 16bit/192kHz or 24bit/96kHz and ADC at 16bit/48kHz, plus compatibility with both CTIA and OMTP headsets — and you get two adapters in the pack.
• SIXSIM USB-C Headphone Adapter — biggest trade-off: it does not support data transfer, it may not handle QC on some newer phones, and the brand itself suggests using a PD wall charger and original PD cable for best results.
• Matsusho 2 — biggest strength: MFi-certified for iPhone 17/16/15 and iPad, with a durable aluminium connector and TPE cable, volume control while fast-charging, and a very broad compatibility list spanning iPhone, iPad Pro, iPad Air, iPad Mini, Galaxy and Pixel.
• Matsusho 2 — biggest trade-off: its noise-reduction DAC is rated at 24bit/48kHz, lower than SIXSIM's top audio spec, and it's a single-colour white design with no plug type listed.
• Who each pick is for: SIXSIM for Android-first users who want the best audio spec and two adapters; Matsusho 2 for iPhone and iPad owners who value MFi certification and a tougher build.
The SIXSIM USB-C Headphone Adapter is built around one idea: keep listening and keep charging at the same time. It splits a single USB-C port into a PD-compatible USB-C port and a 3.5mm audio jack, so you can take a call, play a game, or watch a video on wired headphones while the phone is topping up at up to 60W PD. The audio side is where it stands out on paper — DAC support for 16bit/192kHz or 24bit/96kHz and ADC at 16bit/48kHz. That's a step above the usual dongle, and SIXSIM also states it works with both CTIA and OMTP headset wiring, which matters if you own older or mixed-brand earphones with inline mics.
Compatibility is heavily Android-leaning. The list runs from iPhone 17 and 16/15 families through a very deep Samsung spread — S26, S25, S24 FE, S23, S22, S21, S20, Z Flip7/Flip6, Z Fold7/Fold6, the A-series (A17, A56, A36, A26, A16, A15 5G and more) — plus Note20 Ultra, a long Pixel line (10a through 4 XL), iPad Pro and Sony Xperia. If you're on a Galaxy or a Pixel, this is the adapter that reads like it was written for you.
Two things to know before buying. First, it does not support data transfer — this is a listening-and-charging tool only, so don't expect to move files through it. Second, SIXSIM notes it may not support QC on some newer phones and recommends a PD wall charger with the original PD cable. If your setup is PD-based, you're fine. Buy it if you want the strongest audio spec here, two adapters in one pack, and broad Android plus iPhone coverage. Skip it if you need data transfer, or if you're all-in on an older Quick Charge brick.
The Matsusho 2 takes the same 2-in-1 concept — USB-C port split into a PD charging port and a 3.5mm jack — but aims it squarely at Apple users. It's MFi-certified and lists iPhone 17/17 Pro/17 Pro Max/Air, 16 series, 15 series, iPad Pro 12.9 and 11 inch, iPad Air 4/5, and iPad Mini 6. That iPad coverage is a real differentiator: if you're running an iPad with a single USB-C port, this adapter is designed for exactly that problem. It also reaches across to Galaxy S25/S24/S23/S22/S21/S20/S10 and Note 20/Note 10, plus Pixel 9 down to 2 XL, so it isn't Apple-only — it's just Apple-first.
Two features stand out. First, it supports volume control while fast-charging, so you can adjust levels without reaching for the phone. Second, the build: a durable aluminium connector with a TPE cable, described as sturdy and corrosion resistant. A metal connector at the plug is the part that usually fails first on cheap dongles, so that's a sensible place to spend. Audio runs through a DAC smart chip with noise reduction rated up to 24bit/48kHz — clean and quiet for everyday listening, but not the highest resolution figure between these two.
PD charging is the same 60W ceiling, and Matsusho says the built-in chip keeps voltage and current stable to protect your device. It's plug-and-play, compact and light, and it comes in white as a two-pack.
Side-by-Side: Which Should You Choose?
• Best for iPhone and iPad owners → Matsusho 2. MFi certification plus explicit iPad Pro, iPad Air and iPad Mini 6 support makes it the safer pick on Apple hardware.
• Best for Android and Samsung users → SIXSIM USB-C Headphone Adapter. Its compatibility list is deeper across Galaxy S, Z, A and Note lines, and across the Pixel range.
• Best audio spec → SIXSIM USB-C Headphone Adapter. 16bit/192kHz or 24bit/96kHz DAC versus Matsusho's 24bit/48kHz.
• Best for older or mixed-brand earphones → SIXSIM USB-C Headphone Adapter. It explicitly supports both CTIA and OMTP headset wiring.
• Best build and durability signals → Matsusho 2. Aluminium connector and TPE cable, described as corrosion resistant.
• Best for charging while adjusting volume → Matsusho 2. It supports volume control during fast-charging.
• Best for charging speed ceiling → a tie. Both are rated up to 60W PD.
• Best for getting a spare → a tie. Both ship as two-packs.
In my opinion, the deciding factor is which phone is in your pocket, not which adapter is "better." If you're on an iPhone or iPad, I'd buy the Matsusho 2 — MFi certification, real iPad support, volume control while charging, and a metal connector are the things that matter over years of daily plugging. If you're on a Galaxy or Pixel and care about audio resolution above all, I'd buy the SIXSIM USB-C Headphone Adapter — its 24bit/96kHz DAC ceiling and CTIA/OMTP support give it the edge for wired listening. Neither transfers data, and both top out at 60W PD, so that part of the decision is a wash.
FAQ
how to fast charge bose headphones
how to charge headphones faster
Use a PD charger and a PD-rated cable, and plug the adapter in the right order: connect your earphones and charging cable to the adapter first, then plug the adapter into the phone — SIXSIM lists this sequence as the fix when an adapter doesn't work. Both adapters are rated up to 60W PD, so a matching PD brick is the part that sets your speed.
how to charge headphones
If your headphones charge over USB-C, plug them straight into your charger. If you're using a wired 3.5mm headset, it doesn't charge at all — the 3.5mm jack carries audio only. These adapters exist for the second case: they let a USB-C phone output audio to a 3.5mm headset while a separate PD port charges the phone at the same time.
is fast charging bad for headphones
For 3.5mm headphones, the question doesn't apply — that jack carries audio, not power. For the phone, both adapters state a built-in chip stabilises charging voltage and current to protect your device, and Matsusho notes the design avoids overheating during rapid charging. PD charging is a negotiated standard, so a PD charger and a PD-rated adapter are the safe pairing.
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