JOYROOM SY-C03
A compact, high-fidelity audio or connectivity adapter — designed to extend the ports and connections your device needs.
The JOYROOM SY-C03 is a premium audio and connectivity adapter crafted for users who want reliable signal quality without relying on wireless connections. Built with high-grade materials and an aluminum alloy body, this adapter fits discreetly in any pocket while delivering consistent, no-compromise performance.
What is the JOYROOM SY-C03?
A direct product summary for faster buying decisions.
Quick answer
The JOYROOM SY-C03 is a Black audio and connectivity adapter.
This adapter provides two Type-C ports — one for connecting your USB-C headphones while the other port pass-through charges your phone simultaneously, so you can listen to music without worrying about battery life.
The aluminum alloy shell provides excellent electromagnetic interference (EMI) shielding, ensuring clean audio transmission without static or dropouts. The connector head features a reinforced stress-relief design that extends the adapter’s lifespan against daily plugging and unplugging.
- Brand
- JOYROOM
- Model
- SY-C03
- Series
- Audio-Transfer Series
- Max Power
- 60W PD
- Type
- Audio / Connectivity Adapter
- Color(s)
- Black
- Material
- Aluminum alloy body with precision connector
Why it may suit you
Practical benefits based on documented specifications.
HiFi sound quality
Built-in smart DAC digital-to-analog converter delivers studio-grade audio through any standard wired headphones. No compression, no Bluetooth latency — just pure, uncompressed sound that matches the original recording.
The 60W PD pass-through charging ensures your phone charges at full speed while you listen, even during video calls or navigation.
Multi-function connectivity
Designed to extend your device’s connectivity while maintaining signal integrity across all connected accessories.
Premium aluminum alloy construction
The precision-machined aluminum alloy housing provides dual benefits: it dissipates heat efficiently (preventing the warmth many plastic adapters develop) and shields internal components from electromagnetic interference for cleaner audio and data transmission. Gold-plated contacts ensure long-lasting, corrosion-free connections.
Check compatibility before checkout.
This adapter works with any device that has a Type-C or Lightning port and accepts standard wired audio accessories through the connected headphone jack.
Standard 3.5mm headphones
Wired earphones with microphone
iPhone 15/16 series with Type-C port
Technical specifications
Normalized product facts for easy comparison.
| Brand | JOYROOM |
|---|---|
| Model | SY-C03 |
| Product Type | Audio / Connectivity Adapter |
| Color(s) | Black |
| Material | Aluminum alloy body |
| Max Power | 60W PD Fast Charging |
| Port 1 | USB-C (input) |
| Port 2 | USB-C (charging pass-through) |
| Connector type | Gold-plated contacts |
| EMI shielding | Aluminum alloy housing |
| Warranty | 12 months manufacturer warranty |
What is in the box
- JOYROOM SY-C03 Audio Adapter
- User manual / Quick guide
How to use it
- Identify the correct port on your device (USB-C or Lightning).
- Plug the adapter directly into your device’s audio/data port.
- Connect your 3.5mm wired headphones to the adapter’s headphone jack.
- Audio will play through your wired headphones immediately — no pairing or setup required.
Common buying questions
Clear answers to important compatibility questions.
Can I charge my phone while listening to music with this adapter?
Yes. The SY-C03 features 60W PD pass-through charging, which means you can plug your charger into the second Type-C port while listening to music through the connected headphones — your phone will charge at full speed without any audio interference.
Does it support microphone input for calls?
Yes. The adapter supports full-duplex audio including microphone input, so you can take phone calls, record audio, or use voice assistants with any wired headset’s built-in microphone.
Will the sound quality match native device audio output?
HiFi-grade DAC chips inside ensure near-lossless audio conversion. You’ll hear the same dynamic range and clarity as your device’s native audio output — significantly better than Bluetooth compression at equivalent price points.
Is it compatible with Samsung Galaxy and Pixel devices?
Yes. Since it uses a USB-C input, it works with all Type-C phones including Samsung Galaxy S/Note/Z series, Google Pixel 3+, iPad Pro/Air, and most modern Android tablets and laptops.
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