We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-03 · 7 min read · Independent comparison
If you want to keep using your own USB-C wired headphones while your phone fast charges, choose MEIRIYFA USB Type-C; if you need to plug standard 3.5mm headphones into a modern USB-C phone while it fast charges, choose SolidSS 2.
• MEIRIYFA USB Type-C — biggest strength: turns one USB-C port into a USB-C audio port plus a USB-C PD charging port, so USB-C headset users get audio and up to 60W PD charging at the same time.
• MEIRIYFA USB Type-C — biggest trade-off: it only works with USB-C headphones, so anyone with a traditional 3.5mm plug is left out.
• SolidSS 2 — biggest strength: splits your USB-C port into a 3.5mm aux jack plus 60W PD charging, with two adapters in the pack and Hi-Res audio support.
• SolidSS 2 — biggest trade-off: the pack ships as two compact braided-wire dongles rather than a single cable, and the brand notes measurement tolerances on the size.
• Who each pick is for: MEIRIYFA for USB-C headset owners; SolidSS 2 for anyone still living in 3.5mm headphone land.
The MEIRIYFA USB Type-C is a 2-in-1 splitter cable that takes a single USB-C port and turns it into two: one USB-C audio connector and one USB-C PD charging connector. In practice, that means you can listen to music, take calls, use an external microphone and keep fast charging going at the same time. It's a male-to-female component cable in iron grey, listed at 0.129 meters, which makes it a short pigtail-style adapter rather than a long run of cable. Plug-and-play, no drivers mentioned anywhere.
The PD2.0 fast charging support goes up to 60W, and the connector is rated for a maximum of 20 volts with 72 pins. That's a serious charging ceiling for something this small. The manufacturer is shenzhen milidianzi (model mili777), and it weighs in around 0.05 kg, so it disappears in a pocket or bag. Recommended uses are charging and audio for mobile phones, and compatible devices are listed as laptops and phones, with indoor or outdoor usage both noted. Compatible phone models aren't spelled out, so you'll want to confirm your specific handset handles USB-C audio before buying.
Who should buy it: anyone who already owns USB-C wired headphones or a USB-C headset with a mic and wants to charge while listening. Gamers and call-heavy users on USB-C phones fit perfectly here. Who should skip it: 3.5mm headphone owners, and anyone who wants a spare adapter lying around — the package includes exactly one adapter cable.
SolidSS 2: Who It's For
The SolidSS 2 is a two-pack of USB-C to aux adapters. Each one splits your single USB-C port into a 3.5mm audio jack and a PD charging port, so you can listen and charge simultaneously. The headline spec is the same 60W PD fast charging ceiling as the MEIRIYFA, and SolidSS specifically calls out that it holds stable voltage and current to protect your device while you're plugged in and listening.
The audio side is where SolidSS leans in harder. The adapter supports high-resolution audio with high-speed signal transmission and advanced noise reduction, which the brand frames around clear stereo for music, podcasts, games, videos and calls. Whether that noise reduction is audible in practice is something you'd judge yourself, but it's a stated design feature, not a marketing afterthought.
Compatibility is broad and named: iPhone 15, 16 and 17 series, Samsung Galaxy S23 and S24, iPad Pro, MacBook Pro and more. It's plug-and-play with no drivers. The build is a braided wire in black, sized around 4-7/8 inches — small enough for a pocket or bag, and the brand notes there may be slight measurement deviation since they lack precise measuring tools. You get two adapters in the pack and a one-year warranty description. Note there's no plug of its own; it draws from whatever charger you connect.
The trade-offs are real but modest. It's a dongle, so it hangs off your phone rather than running as a cable. And it does nothing for USB-C headphone owners — there's no USB-C audio port on it, only the 3.5mm jack. If your headphones are USB-C, this is the wrong tool.
Side-by-Side: Which Should You Choose?
• Best for USB-C headphone owners → MEIRIYFA USB Type-C. It's the only one of the two with a USB-C audio port.
• Best for 3.5mm headphone owners → SolidSS 2. The aux jack is the whole point, and the MEIRIYFA can't do it.
• Best for fast charging ceiling → a tie. Both support up to 60W PD fast charging.
• Best for iPhone 15/16/17 and Galaxy S23/S24 buyers → SolidSS 2. Those models are explicitly named as compatible; MEIRIYFA doesn't list specific phone models.
• Best for laptop users → MEIRIYFA USB Type-C. Laptops are listed among its compatible devices, and 60W PD covers a lot of ultrabook charging.
• Best for having a spare → SolidSS 2. Two adapters in the box versus one.
• Best for a single-cable feel → MEIRIYFA USB Type-C. It's a cable-style adapter at 0.129 m, not a stubby dongle.
• Best for mic and calls on USB-C → MEIRIYFA USB Type-C. External microphone support is explicitly stated.
• Best for audio-quality features on paper → SolidSS 2. Hi-Res support and noise reduction are stated; MEIRIYFA makes no such claim.
In my opinion, the right pick comes down to one question: what plug is on your headphones? If it's USB-C, buy the MEIRIYFA USB Type-C — it's the only one that gives you a USB-C audio path plus 60W PD charging, and the external mic support makes it the better call for calls and gaming. If it's 3.5mm, buy the SolidSS 2 — you get the aux jack, broad named compatibility with recent iPhones and Galaxy phones, Hi-Res audio support, and a second adapter as backup. Neither is universally better; they solve opposite halves of the same problem. Check the current price on Amazon before you commit, and match the adapter to your headphone plug first.
How to charge headphones faster
Fast charging speed is set by your charger and your phone, not the adapter — both the MEIRIYFA and the SolidSS 2 pass through up to 60W PD. To actually charge faster, pair either one with a PD wall charger that supports the wattage your device accepts. The adapter itself won't add speed beyond what your charger delivers.
How to charge headphones
On most modern phones you plug the adapter into the USB-C port, connect your charger to the adapter's PD port, and your headphones to the audio side. With the MEIRIYFA that's a USB-C headphone into the USB-C audio port; with the SolidSS 2 it's a 3.5mm plug into the aux jack. Both are plug-and-play with no drivers.
Is fast charging bad for headphones
The charging current goes to your phone, not your headphones — the audio and power paths are separate on both adapters. SolidSS states its adapter delivers stable voltage and current to protect devices. Neither data sheet describes any risk to your headphones from the charging side.
How to fast charge Bose headphones
Neither of these adapters charges headphones directly; they charge the phone or laptop they're plugged into while you listen. Bose headphones with their own USB-C or micro-USB charging port would charge from their own cable and charger, not through these adapters. For phone-and-headphone listening while charging, either adapter works within its plug type.
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