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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-30 · 7 min read · Independent comparison
• Znoogrn 3-in-1 — biggest strength: three ports on one tiny white adapter (USB-C in, 3.5mm out, USB-A out) plus PD passthrough rated at 20V / 3A, so audio, charging and a USB accessory can share one connection.
• Znoogrn 3-in-1 — biggest trade-off: it is a single unit, the USB-A port is the only data path, and the stated warranty is 6 months, which is shorter than what many buyers expect from a daily-carry dongle.
• Criello USB C — biggest strength: a dedicated 2-in-1 audio-plus-charging design with an advanced DAC chip, high-resolution output and noise reduction up to 24bit/48kHz, plus PD charging that supports up to 30W.
• Criello USB C — biggest trade-off: only two ports (USB-C in, 3.5mm out), so there is no USB-A branch for peripherals; the package is sold as a 2-pack, which is great if you want one for a bag and one for a desk, but redundant if you only need one.
• Who each pick is for: Znoogrn 3-in-1 suits people who want to plug headphones, charge, and still attach a USB-A device at the same time. Criello USB C suits people who mainly want wired listening plus fast charging, and who value a spare cable.
The Znoogrn 3-in-1 is built around one idea: a single USB-C port should not force you to choose between audio, power and accessories. Its connector type is USB Type C, it carries three ports, and it is rated for 20 volts at 3 amps. In practice, that means you can run wired headphones through the 3.5mm jack, keep a PD charger feeding the adapter, and still have a USB-A socket free for a keyboard, mouse or flash drive. For anyone using a MacBook Pro or Air, an iPad Pro, or a Samsung Galaxy S23 or S24 as their main machine, that is genuinely useful. The OTG side of the design is what makes it more than a headphone dongle — it is a small hub.
It fits best for people who work in mixed setups. Say you take a laptop to a coworking space: you plug in your wired headset for calls, connect a compact USB keyboard, and top up the battery from the same wall charger you already carry. Or you are travelling with an iPhone 15 or 16 and want to watch something with wired earphones while charging, and later pull photos off a USB stick. The Znoogrn handles all of those in one white, pocket-sized piece, and it is plug-and-play — no software or setup to think about.
Who should skip it? If your routine is purely "listen and charge," the extra USB-A port is dead weight you are paying for, and the 6-month warranty description is worth weighing against the Criello's 1-year manufacturer coverage. Also skip it if you want a spare cable in the box — this is a single unit, one count, one item.
The Criello USB C is a purpose-built audio-and-power adapter, and it is unapologetic about that. Two ports: USB-C in, 3.5mm out. Inside sits a dedicated DAC smart chip, and the design targets high-resolution output with noise reduction up to 24bit/48kHz — the kind of spec that matters if you care about clean stereo rather than "it makes sound." It supports music playback and call functions on most USB-C devices, and volume adjustment keeps working while you fast charge. The charging side supports up to 30W PD, with a built-in chip described as stabilising voltage and current to protect your device.
The physical build is aluminium at the connector with a TPE cable jacket — corrosion-resistant, sturdy, and clearly aimed at being thrown in a bag. Plug and play, compact, lightweight at roughly 0.02 kg. It is compatible with a very wide list: iPhone 15/16/17 Pro/Plus/Pro Max, Samsung Galaxy S23/S22 series and Note 20/10, iPad mini 6, iPad Pro 2022/2021/2020, iPad Air 6/5/4, iPad 2022, MacBook Pro/Air, XPS 17/15/13 and various Huawei models.
So who is it for? People who want the listening-and-charging job done properly, with a higher PD ceiling than the Znoogrn's 20V/3A rating and a warranty described as 1 Year Manufacturer. It is also for anyone who wants redundancy: this ships as a 2-pack, so one lives in your bag and one stays plugged into the car or desk. If you take calls in the car, or you want to charge while listening on a long flight, that second unit earns its place.
Who should skip it? Anyone who needs to attach a USB-A device — a keyboard, mouse, external drive — at the same time. There is no USB-A port here, and no OTG branch. If your laptop or tablet is short on ports generally, this adapter solves one problem, not three.
Side-by-Side: Which Should You Choose?
• Best for plugging in more stuff → Znoogrn 3-in-1. Three ports, including USB-A for keyboards, mice and flash drives.
• Best for audio quality focus → Criello USB C. A dedicated DAC chip with high-resolution output and noise reduction up to 24bit/48kHz.
• Best for a spare in the bag → Criello USB C. It arrives as a 2-pack; the Znoogrn is a single unit.
• Best for warranty comfort → Criello USB C. 1 Year Manufacturer versus the Znoogrn's 6 months.
• Best for travel simplicity → Znoogrn 3-in-1. One compact white adapter covers audio, power and a USB peripheral in a single plug.
• Best for iPhone 15/16 wired listening while charging → either. Both are USB-C to 3.5mm with charging passthrough; the difference is whether you also want a USB-A port.
• Best for car or desk setups → Criello USB C. The second unit can stay permanently plugged in.
In my opinion, I would buy the Criello USB C. My reasoning is straightforward: the headline job here is fast-charge headphones, and Criello does that job with a higher PD ceiling (up to 30W), a dedicated DAC chip, a sturdier aluminium-and-TPE build, a 1-year manufacturer warranty, and two units in the box. I would only switch to the Znoogrn 3-in-1 if I specifically needed the USB-A OTG port — that third port is the one thing Criello cannot do, and for a laptop or tablet owner juggling peripherals it can be the deciding factor. For most people, though, Criello is the cleaner, more focused pick.
how to charge headphones faster
Fast charging depends on the adapter and the charger, not the headphones. The Criello USB C supports up to 30W PD with a chip described as stabilising voltage and current, while the Znoogrn 3-in-1 is rated 20 volts at 3 amps — so pair either with a matching PD wall charger and the adapter will pass power through as intended.
how to charge headphones
With either of these adapters, you plug the adapter into your phone, tablet or laptop's USB-C port, plug your wired headphones into the 3.5mm jack, and connect a charger to the adapter's USB-C charging port. Both are plug and play, so there is no software, driver or setup step — and on the Criello you can still adjust volume while charging.
how to fast charge bose headphones
Wired headphones like Bose models draw power from the device, not from the adapter itself — the adapter just passes your charger's power through. Choose a USB-C PD charger that meets or exceeds the adapter's rating (up to 30W on the Criello, 20V/3A on the Znoogrn) and the charging pass-through will work as designed.
is fast charging bad for headphones
Not inherently. PD charging here is designed to be stable: the Criello describes a built-in chip that stabilises charging voltage and current to protect your devices, and the Znoogrn is rated at a fixed 20 volts and 3 amps. Using a charger within the adapter's stated rating is the sensible approach with either product.
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