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Joyroom SY-C03 2-in-1 USB-C to 3.5mm Audio Adapter
The Joyroom SY-C03 is a 2-in-1 audio adapter built for modern devices that only offer a single USB-C port. It splits that one port into a 3.5mm headphone jack and a USB-C charging pass-through, so you can listen to wired headphones and charge your device at the same time, without switching cables back and forth.
Supporting USB-C Power Delivery with up to 60W of charging power, the SY-C03 is capable of powering more than just phones — it can handle tablets and even some laptops, while maintaining a clean, uninterrupted audio signal through the 3.5mm output. That makes it a practical pick for anyone who listens to music, takes calls, or watches videos while their device charges.
Built with an aluminum alloy housing and a braided nylon cable, the adapter is designed to resist daily wear, bending, and corrosion, making it a reliable accessory for commuting, working, or traveling with wired audio gear.
Key Features
Simultaneous Audio and Charging: Splits a single USB-C port into a 3.5mm audio jack and USB-C charging line, so you never have to choose between listening and charging.
USB-C Power Delivery (PD) Support: Enables fast, efficient power transfer that charges your device quickly while helping protect long-term battery health.
Up to 60W Fast Charging: Powerful enough for smartphones, tablets, and even some laptops, avoiding the slow charging speeds of basic adapters.
High-Fidelity Audio Transmission: Preserves the original audio signal for clear, uncompressed sound through wired headphones or car AUX connections.
Aluminum Alloy and Braided Nylon Build: Resists corrosion, bending, and daily wear, giving the adapter a longer usable lifespan than plastic alternatives.
Plug-and-Play Design: No drivers or setup required — just connect your headphones and charging cable and start using it immediately.
Why Choose the Joyroom SY-C03 USB-C to 3.5mm Audio Adapter
Devices without a dedicated headphone jack often force a frustrating choice between listening to audio and keeping your battery topped up. The SY-C03 removes that trade-off entirely, letting you use wired 3.5mm headphones and charge at up to 60W through the same port at the same time.
Its durable aluminum and braided nylon construction means it can handle daily use in a bag or pocket without fraying or corroding at the connectors, making it a dependable accessory for commuters, remote workers, and travelers who rely on wired audio.
Technical Specifications
Specification | Detail |
|---|---|
Model | Joyroom SY-C03 |
Type | 2-in-1 Audio and Charging Adapter |
Connector Type | USB-C Input to 3.5mm Audio + USB-C Charging |
Function | Audio Transmission / Charging |
Charging Power | Up to 60W (USB-C Power Delivery) |
Material | Aluminum Alloy + Braided Nylon |
Color | Black |




Compatibility
Works with any USB-C smartphone, tablet, or laptop, including devices running Android, iOS, macOS, or Windows.
Compatible with standard 3.5mm wired headphones, earphones, and car stereo AUX cables.
Supports USB-C Power Delivery charging cables and adapters for fast charging.
Package Includes
1 x Joyroom SY-C03 2-in-1 Audio Adapter
Frequently Asked Questions
Can I listen to audio and charge my phone at the same time?
Yes, the SY-C03 splits a single USB-C port into a 3.5mm audio jack and a USB-C charging line, so both work simultaneously.
What's the maximum charging speed?
The adapter supports USB-C Power Delivery with up to 60W of charging power, suitable for phones, tablets, and some laptops.
Does the adapter reduce audio quality?
No, it's engineered to preserve the original audio signal, delivering clear sound without lag or compression loss.
Is the adapter compatible with iPhones and Android devices?
Yes, it works with any USB-C device, including Android smartphones, iPads, and other USB-C-equipped devices.
How durable is the build?
The adapter uses an aluminum alloy housing and braided nylon cable, designed to resist corrosion, bending, and daily wear.
Do I need to install any drivers or software?
No, the SY-C03 is plug-and-play. Simply connect it to your device and your headphones or charger.
Is it safe for laptops and tablets, not just phones?
Yes, its 60W output is high enough to handle tablets and select laptops in addition to smartphones.






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