Seulliya USB-C to 3.5mm Headphone Jack Adapter (2-Pack) with Hi-Res DAC

What this is and who it’s for

The Seulliya USB-C to 3.5mm adapter is a compact dongle designed to connect wired headphones, aux cords, or car stereos to USB-C devices. It’s pitched at users with modern USB-C devices who want wired audio for music, calls, or gaming, including iPhone models via USB-C era accessories, iPad Pro/Air, Samsung Galaxy S24/S23/Ultra, Google Pixel, and other USB-C devices. The 2-pack gives you a spare or one for travel and home setups.

Audio quality on paper

This adapter carries a Hi-Res Audio DAC with a 24-Bit/192kHz specification, which points to lossless-like sound for clear music, better gaming cues, and crisper calls. The presence of a dedicated DAC suggests a more faithful signal path compared to passive adapters, though results can vary by headphones and source content.

Build and durability

The connector features gold-plated 3.5mm and USB-C jacks to minimize corrosion and reduce interference. The cable uses a reinforced, flexible TPE design with stress points that are built to resist tangling and daily wear. Seulliya cites 20,000+ bend tests, which implies longevity in typical daily use.

How it works in practice

No drivers or apps are required—just plug in and go. This makes it a practical option for quick setups, travel, or situations where you want to keep your existing wired headphones in the mix. The compact form factor helps keep pockets and bags light, and the 2-pack means you can set up multiple devices or have an in-car option ready.

The good and the not-so-good

What stands out: straightforward plug-and-play, broad compatibility with many USB-C devices, and a claimed Hi-Res Audio path. What may fall short for some: even with a DAC, the perceived improvements hinge on your headphones and source material, on some setups, the difference may be subtle rather than dramatic. It’s also important to note that audio performance can vary by device and may not match dedicated high-end DACs.

Who it’s for

If you prioritize a simple, portable way to add wired audio to a USB-C device—whether for commuting, driving, or watching movies—this 2-pack can be convenient. It’s a reasonable fit for those who want a backup adapter for multiple gadgets or a spare for in-car use. If you rely on the absolute highest-end audio gear or require niche compatibility, you might want to compare it against other options with more specific specs.

When to buy or pass

Buy if you want a practical, plug-and-play USB-C to 3.5mm solution and you value a two-pack for flexibility. Pass if you need universal adapter performance across a very wide array of audio setups or if you demand professional-grade DAC performance beyond 24-Bit/192kHz labels.

What to check before buying

Ensure your headphones or car stereo use a 3.5mm jack and that your device is USB-C compatible. Consider how much you value a braided or reinforced cable versus a plain flex design, and remember that the DAC capability is a plus on paper, but real-world gains depend on the rest of your audio chain.

Practical use case

Imagine hopping into your car with wired headphones and a USB-C phone. You pop this 2-pack into your bag, plug in the dongle, and instantly enjoy clearer audio during commutes or road trips without hunting for the right adapter. It’s not a magic upgrade, but it adds stability and a clean signal path when you want wired sound on the go.

FAQ

Q: Do I need drivers to use this adapter? A: No drivers or apps are needed, it’s plug-and-play. Q: Will it improve audio with any headphones? A: It includes a Hi-Res DAC, but actual improvements depend on your headphones and source material. Q: How durable is the cable? A: It uses a reinforced TPE design with proven bend-testing, but real-life longevity still depends on handling.

Final verdict

Final verdict: Worth considering if you want a practical, two-pack USB-C to 3.5mm solution that emphasizes ease of use and broad compatibility, with a nod to higher fidelity through a DAC path. It’s a sensible option for everyday wired audio on USB-C devices, especially for users who value a spare or travel-ready adapter. It may not be the best choice if you’re chasing flagship-grade audio performance or have niche compatibility needs.