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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-26 · 7 min read · Independent comparison
• YINYOO USB C Splitter — biggest strength: It splits a single USB-C port into a PD charging port plus a 3.5mm audio jack, with a DAC chip handling the sound, so you can charge and listen at the same time.
• YINYOO USB C Splitter — biggest trade-off: It only does anything useful if you still own wired headphones and a USB-C phone or tablet; unplugging power causes a brief audio drop.
• Xininyia 2-Pack — biggest strength: Two magnetic 4-pin cables built for bone conduction headphones, with short-circuit, over-voltage and over-current protection and a braided-style PVC jacket rated for 5000+ bends.
• Xininyia 2-Pack — biggest trade-off: It is a charging cable, not an audio adapter, and it only fits bone conduction models that use that magnetic 4-pin connector.
• Who each pick is for: YINYOO for wired-IEM listeners who game or commute on a USB-C phone; Xininyia for owners of SAMVEK X7, Dnniakm X7 Pro, Haowolf X16, Hitarah X19 or POLVCDG open-ear headphones who keep losing or fraying their stock cable.
The YINYOO USB C Splitter is a 1-in-2-out dongle. One end plugs into your phone's USB-C port; the other end gives you a PD-compatible charging port and a 3.5mm jack. That is the entire pitch, and for a certain kind of listener it solves a genuinely annoying problem: modern phones dropped the headphone jack, but plenty of people still prefer wired IEMs for gaming, calls and critical listening. This adapter lets you keep those IEMs plugged in while the phone keeps topping up.
Who should buy it: anyone with a USB-C phone or tablet who wants one cable path for both power and wired audio. The compatibility list is broad — iPhone 16/15 series, most of the Samsung Galaxy S and Note lines, iPad Pro, iPad mini 6, MacBook, Pixel and Huawei devices. If you own KZ ZS10 PRO or CCZ CA01 IEMs, this is clearly aimed at you.
Who should skip it: if your headphones are wireless, this does nothing for you. If you use a Lightning phone, it does not apply. And if you dislike any interruption in playback, note YINYOO's own caveat: connecting and disconnecting power causes a very brief loss of music sound. That is normal behaviour for this type of splitter, but it is worth knowing before you buy.
Xininyia 2-Pack: Who It's For
The Xininyia 2-Pack is a completely different animal. These are two 60cm magnetic charging cables designed specifically for bone conduction and open-ear headphones that use a 4-pin magnetic connector — SAMVEK X7, Dnniakm X7 Pro, Haowolf X16, Hitarah X19 and the POLVCDG series, per the listing. The connector type on the cable end is USB Type A, so you plug the flat end into a wall adapter, power bank or laptop USB port and the magnetic head snaps onto the headphone.
The headline feature is the magnetic connection itself. Xininyia uses a built-in pure copper probe with a solid magnetic power supply, and claims stronger adsorption than generic chargers — which matters more than it sounds, because a weak magnetic contact is exactly why so many bone conduction owners end up with a cable that only charges when the headphone sits at one precise angle. The electrical side gets short-circuit, over-voltage and over-current protection, which is the kind of spec you want on a small cable feeding a small battery.
Durability is addressed directly: ABS housing with flexible PVC, tested for 5000+ bends. Anyone who has killed a charging cable at the strain relief point knows that number is the one to care about. It is also light and portable, with a low-power standby mode and a high-efficiency conversion circuit to cut wasted energy. You get two cables in the pack, which is the practical part — one for your bag, one for the desk, so you are never hunting for the charger.
Side-by-Side: Which Should You Choose?
• Best for charging and listening at the same time → YINYOO USB C Splitter. Two ports out of one, PD power plus 3.5mm audio.
• Best for bone conduction headphone owners → Xininyia 2-Pack. It is built for exactly that magnetic 4-pin connector.
• Best for wired IEM users (KZ ZS10 PRO, CCZ CA01) → YINYOO USB C Splitter. The DAC chip and 3.5mm jack are the point.
• Best for durability against daily abuse → Xininyia 2-Pack. 5000+ bend testing on a flexible PVC cable is a concrete, stated figure.
• Best for travel and commuting → both, for different reasons. YINYOO is a pocketable dongle; Xininyia is a light 60cm cable you can leave in a bag.
• Best for battery peace of mind → YINYOO USB C Splitter. Up to 15W PD that YINYOO says will not slow your device's original charging speed.
• Best for getting two units → Xininyia 2-Pack. It ships as a pair, so you have a backup from day one.
• Best if you own wireless headphones only → neither. Both products exist to serve specific wired or magnetic-charging setups.
In my opinion, the right pick comes down to one question: are you trying to power a phone or a headphone? If you want to keep wired IEMs in your ears while your USB-C phone charges — gaming, calls, long videos — I would buy the YINYOO USB C Splitter. The DAC, the 15W PD rating, the aluminum and braided build and the huge compatibility list make it the more versatile tool of the two, and it solves a problem most modern phones created. I would only choose the Xininyia 2-Pack if I specifically owned one of the bone conduction models it lists, in which case two protected, bend-tested magnetic cables is a sensible, practical buy. Different jobs, different winners.
FAQ
how to charge headphones faster
Use the charging method your headphones were designed for and give them a clean, stable power source. For the YINYOO USB C Splitter that means a PD-compatible charger, since it supports up to 15W (5V/3A) and complies with PD, QC and PPS. For the Xininyia 2-Pack, the optimized circuit design and stable current output are what keep the magnetic connection charging efficiently.
With the YINYOO USB C Splitter, plug the dongle into your phone's USB-C port, connect a charger to the PD port and your 3.5mm headphones to the jack — you charge the phone while listening. With the Xininyia 2-Pack, plug the USB-A end into a power source and let the magnetic 4-pin head snap onto compatible bone conduction headphones.
is fast charging bad for headphones
Not inherently. The concern is heat and unstable current, which is why protection matters. Xininyia builds in short-circuit, over-voltage and over-current protection specifically to prevent battery overheating and damage. YINYOO's splitter handles power delivery to the phone and states it complies with PD, QC and PPS standards rather than pushing beyond them.
how to fast charge bose headphones
Neither product here is a Bose charging solution. The YINYOO USB C Splitter is a USB-C to 3.5mm audio-plus-charging adapter for phones and tablets, and the Xininyia 2-Pack is a magnetic 4-pin cable for SAMVEK, Dnniakm, Haowolf, Hitarah and POLVCDG bone conduction models. For Bose, use the cable and charger that shipped with your headphones.
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See also: Abysssea Charger Cable vs Hoenkeips USB C: Fast Charge, INVERSE NET USB C vs Liaoan USB C Headphone: Fast Charge, Hmusic USB C vs QJF 2-Pack