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If you want one small adapter that lets you keep using wired 3.5mm earphones on a modern USB-C phone while still fast-charging at the same time, choose JSAUX USB C Headphone; if you need a dedicated replacement charging cord for a pair of AfterShokz AS800 or ASC100 bone-conduction headsets, choose Yoidesu Charging Cable.
• JSAUX USB C Headphone — biggest strength: It splits a single USB-C port into a 3.5mm audio jack plus a PD-compatible charging port, so you can listen and charge at once, with a built-in DAC rated for 24bit/96kHz playback.
• JSAUX USB C Headphone — biggest trade-off: It is an adapter, not a cable for a specific headset, and it cannot charge every OnePlus or Pixel model, nor does it support Apple earPods inline volume control.
• Yoidesu Charging Cable — biggest strength: A purpose-built replacement charge cord for AfterShokz AS800 and ASC100 headsets, made of TPE with short-circuit, overvoltage and overload filtering.
• Yoidesu Charging Cable — biggest trade-off: It only fits those specific headset models and does nothing else — it is not a general-purpose USB-C accessory.
• Who each pick is for: JSAUX for anyone who wants wired audio and charging from one USB-C port; Yoidesu for an AS800 or ASC100 owner who just needs a working spare cable.
The JSAUX adapter is a tiny two-port splitter — its measured dimensions are just 11 x 0.15 x 0.15 inches and it weighs about 0.01 kg, so it lives on the end of a cable without adding bulk. One side is a PD-compatible USB-C port rated up to 60W, the other is a 3.5mm jack. That combination is the whole point: you plug the adapter into your phone, plug your earphones into the 3.5mm side, and plug a charger into the USB-C side. Music, games, calls and video keep going while the phone fast-charges.
Inside, there is a real DAC. JSAUX rates playback at 24bit/96kHz or 16bit/48kHz and recording at 16bit/48kHz, and the design is meant to keep the audio stable without current noise. The 3.5mm port is CTIA/TRRS compatible — and that detail matters, because only TRRS (four-pole) headphones carry microphone support. If you plug in a TS or TRS plug, you get audio but no mic. It also supports inline headphone controls on standard earphones, though JSAUX explicitly notes it does not support line control on Apple earPods.
Who should buy it: anyone who has good wired earphones and a USB-C phone without a headphone jack, and who is tired of choosing between listening and charging. Who should skip it: OnePlus or Pixel owners who need guaranteed charging passthrough, and anyone who mainly uses Apple earPods and wants inline volume control.
Yoidesu Charging Cable: Who It's For
The Yoidesu cable solves a much narrower problem. It is a replacement charging cord made specifically for AfterShokz AS800 and ASC100 Bluetooth headsets. The connector is USB with a male-to-female, four-pin layout, and the cable itself is round and black. If your original AS800 or ASC100 charge cord went missing or stopped working, this is the drop-in fix.
The build details are straightforward. It is made of TPE, which Yoidesu describes as sturdy, and the cable is designed to run at a low working temperature for a longer service life. On the electrical side, Yoidesu lists output short-circuit protection, overvoltage protection, and overload filtering, plus good anti-interference performance. The stated charging behavior is a small DC ripple and high working efficiency, which is the manufacturer's way of saying it charges quickly and cleanly.
What it is not is a universal cable. It is not a USB-C audio adapter, it does not carry a DAC, and it will not power a phone. Its compatible device list is exactly two headset families. That narrowness is not a flaw — it is the product. A dedicated cable for a specific headset usually means the connector geometry actually matches the headset's charge port.
Who should buy it: AS800 or ASC100 owners who need a spare or replacement charge cord and want the protection circuitry built in. Who should skip it: everyone else — if you do not own one of those two headsets, this cable has no job on your desk.
• Best for listening and charging at the same time → JSAUX USB C Headphone. Two ports, one USB-C input, PD up to 60W.
• Best for a specific AfterShokz headset → Yoidesu Charging Cable. Built only for the AS800 and ASC100.
• Best for audio quality from a phone → JSAUX USB C Headphone. The onboard DAC handles 24bit/96kHz playback, which a plain charge cable cannot do.
• Best for mic and inline controls → JSAUX USB C Headphone, with two caveats: only TRRS headphones give you mic support, and Apple earPods inline volume control is not supported.
• Best for travel and portability → JSAUX USB C Headphone. No drivers needed, and at 11 inches long it slips into a pocket.
• Best for simplicity → Yoidesu Charging Cable. Plug in, charge, done — no settings, no chip restart quirks.
• Best for iPhone 15/16 or Galaxy S21–S24 owners → JSAUX USB C Headphone. Those are the listed compatible families.
• Best for OnePlus or Pixel owners → neither, honestly. JSAUX warns it cannot charge all models of both, so check your exact model before buying.
One practical note on the JSAUX: if you unplug the charger while music is playing, playback can stop. JSAUX explains this is normal — the main control chip restarts when the board's power supply changes — and you simply press play again. Worth knowing so it does not surprise you.
In my opinion, the JSAUX USB C Headphone is the one I would buy, because it does something most people actually need every day: it gives a jackless phone a headphone port without forcing you to give up charging. The DAC specs, the PD 60W passthrough and the wide phone list make it the far more useful object of the two. The Yoidesu cable is a good, purpose-built part — but only if you own an AS800 or ASC100. If you do, buy it without hesitation. If you don't, it is simply the wrong tool, and the JSAUX adapter is the smarter pick. Either way, check the current price on Amazon before you commit.
Yes, in my opinion. JSAUX lists the iPhone 15 series and iPhone 16/16 Plus/16 Pro/16 Pro Max as compatible, and the adapter restores a 3.5mm jack while keeping PD charging available. Just remember Apple earPods inline volume control is not supported.
No. Yoidesu lists only AfterShokz AS800 and ASC100 as applicable models. It is a dedicated replacement cord, not a universal charging cable, so treat it as a spare part for those headsets only.
For calls, yes — inline headphone controls are supported. For recording, you need four-pole TRRS headphones, since TS and TRS plugs carry no microphone signal. That is a hardware requirement, not a setting.
Not really. One is a USB-C audio-and-charging adapter for phones; the other is a charge cord for two specific bone-conduction headsets. The only reason to compare them is that both are small, inexpensive accessories — the jobs they do are completely different.
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