Product Overview
The 2-in-1 USB-C to 3.5mm Audio and Charging Adapter is designed to provide simultaneous audio output and fast charging capabilities for your USB-C enabled mobile devices. This adapter allows you to listen to music, make calls, and control volume through your 3.5mm headphones while your device charges.

Safety Information
WARNING: CHOKING HAZARD - Small parts. Not for Children under 3 years.
Setup and Installation
- Check Specifications: Before connecting, ensure that the interface type of the adapter (USB-C), the transmission specification, and your device's compatibility match. This adapter is designed for audio and charging functions. Avoid using it for purposes like Type-C to HDMI or USB data transmission unless explicitly supported by your device. Verify interface identification to prevent incorrect insertion.
- Insert and Fix: Hold both ends of the adapter steadily. Align the USB-C connector with your device's USB-C port and gently push until it is fully attached. Do not forcefully plug or shake the interface to avoid damage.
- Connect Peripherals: Once the adapter is securely connected to your device, plug your 3.5mm headphones into the audio jack and your USB-C charging cable into the charging port on the adapter.
Operating Instructions
This 2-in-1 adapter allows you to enjoy audio and charge your device simultaneously. It features original sound quality and digital DAC decoding for an enhanced audio experience.
- Simultaneous Use: Connect your 3.5mm earphones and USB-C charging cable to the adapter. You can now listen to music, make HD calls, and control volume while your device charges.
- Audio Quality: The adapter supports Hi-Fi audio with 32-bit, 384 kHz decoding, providing clear and high-fidelity sound.
- Charging: The adapter supports PD Fast Charging, allowing for efficient power delivery to your device.
- Controls: Utilize your earphones' volume controls and microphone for calls, as supported by the adapter.


Maintenance and Care
- Removal: After use, hold the main body of the adapter vertically and pull it out gently. Avoid squeezing the interface or winding the wires when storing.
- Environment: Keep the adapter away from high-temperature, humid, and oily environments. This helps prevent interface oxidation and short circuits. If the model is not specified as waterproof, avoid prolonged exposure to water.
- Cleaning: Use a soft, dry cloth to clean the adapter. Do not use harsh chemicals or abrasive materials.

Troubleshooting
- Compatibility Issues: This adapter is only compatible with devices that support audio output over their USB-C port. Do not use cross-type adapters (e.g., charging adapters for data transmission) as this can lead to functional failure or device damage.
- Physical Damage: Do not forcefully plug, bend, or pull the adapter's wires. This can deform interface pins, break internal circuits, or cause breakage/stripping. If the adapter appears damaged (loose interface, cracked wires), discontinue use immediately to prevent poor contact or further device damage.
- Audio/Charging Malfunction: If audio is intermittent, distorted, or charging is not working, ensure the adapter is fully and correctly inserted into both your device and the peripherals. Test with different headphones or charging cables if possible.
- Transmission Limitations: Do not attempt to transmit data or power beyond the specified specifications. For example, do not connect ordinary adapters to high-power devices if not designed for it, or expect high-speed transmission if the adapter operates at a lower specification.
- Unintended Disconnection: When using in vehicles or portable scenarios, secure the adapter and connected devices properly to prevent it from falling off or the interface being worn out due to jolting.
Specifications
| Feature | Description |
|---|---|
| Model Number | USB C Splitter |
| Compatible Brand/Model | Mobile Device (e.g., Samsung, iPhone 15/16/17, Xiaomi) |
| Functionality | 2-in-1: USB-C to 3.5mm Audio Jack + USB-C PD Fast Charger |
| Audio Features | Hi-Fi Sound Quality, Digital DAC Decoding (32-bit, 384 kHz), HD MIC, HD Call, Volume Control |
| Charging Features | PD Fast Charger Cable (supports up to 15-20W) |
| Material | Aluminum alloy shell, Upgraded cotton mesh weaving / Braided wire |
| Durability | Resistant to bending and bursting (10,000+ swing tests), Resistant to wear and scratches |
| Available Colors | Black, Silvery |
| Certifications | CE, RoHS |
| Origin | Mainland China |
| Package Dimensions (approx.) | Length: 15 cm, Width: 15 cm, Height: 1 cm |
| Package Weight (approx.) | 0.014 kg |
Compliance Standards:
- EN 55032:2015/A1:2020
- EN 55035:2017/A11:2020
- EN IEC 61000-3-2:2019/A1:2021
- EN 61000-3-3:2013/A2:2021/AC:2022-01
User Tips
- Simultaneous Functionality: This adapter is particularly useful for devices that lack a 3.5mm headphone jack, allowing you to charge your device and listen to audio at the same time. The elbow connector design can be convenient for continued use while charging.
- Charging Performance: The adapter supports PD fast charging, typically delivering 15-20 watts, which is sufficient for most mobile devices. Actual charging speed may vary based on your device and power adapter.
- Audio Quality: The adapter is designed to deliver good sound quality. For optimal audio experience, ensure your headphones are of good quality and consider adjusting your device's equalizer settings to your preference.
- Secure Connection: Always ensure the adapter is firmly connected to your device and that your headphones and charging cable are securely plugged into the adapter to prevent intermittent issues.
Frequently Asked Questions (FAQ)
- Q: Is this adapter compatible with all USB-C devices?
- A: No, it is primarily compatible with mobile devices that support audio output over their USB-C port. Please check your device's specifications for USB-C audio compatibility.
- Q: Can I use both audio and charging functions simultaneously?
- A: Yes, the 2-in-1 design allows for simultaneous audio playback and charging.
- Q: What kind of charging speed does it support?
- A: It supports PD fast charging, typically up to 15-20W, depending on your device and charger.
- Q: Why is the audio quality poor or intermittent?
- A: Ensure the adapter is fully inserted and not damaged. Avoid using it in environments with strong electromagnetic interference. Some devices may have specific compatibility requirements. If issues persist, try with different headphones or on another compatible device.
- Q: Does it support volume control and calls?
- A: Yes, it supports HD calls, HD MIC, and volume control through compatible earphones.
Warranty and Support
This product is CE and RoHS certified, indicating compliance with European safety, health, and environmental protection standards.
For any support inquiries, troubleshooting assistance, or warranty information, please contact the seller or retailer from whom you purchased this product. They will be able to provide specific details regarding your purchase.
A detailed user manual in PDF format may also be available for download from the seller's product page or by contacting customer support.