FONVOi Type-C to 3.5mm Audio Adapter (2-Pack) User Manual

1. Introduction

Thank you for choosing the FONVOi Type-C to 3.5mm Audio Adapter. This adapter is designed to bridge the gap between your modern USB Type-C devices and traditional 3.5mm audio accessories. Featuring a built-in Digital-to-Analog Converter (DAC) and a durable design, it ensures high-quality audio transmission and reliable performance. This manual provides essential information for setup, operation, maintenance, and troubleshooting.

2. Product Features

• Integrated DAC Chip for High-Fidelity Audio: Equipped with an advanced 24bit/48kHz DAC chip to minimize audio signal loss, delivering clear and immersive sound. Experience high-resolution audio quality with your wired earphones.
• Durable Nylon Braided Cable: Constructed with aluminum-magnesium alloy connectors and a double-shielded nylon braided cable, designed to withstand over 30,000 bends. The reinforced connection minimizes the risk of disconnection. Its compact 10cm length enhances portability.
• Multi-functional with Microphone and Remote Control Support: Allows for playback/pause and volume adjustment via inline remote controls on compatible earphones. The built-in microphone ensures clear calls. Enjoy smooth audio synchronization for gaming and video. Full headset functionality is supported with TRRS/4-pole compatible devices.
• Broad Device Compatibility: Universally compatible with most Type-C devices, including iPhone 15/16 series, iPad Pro, MacBook, Galaxy S24, Pixel 8, Huawei Mate60, and more. Supports plug-and-play functionality across iOS, Android, and Windows systems. Also enables audio output for gaming consoles like PS5 and Nintendo Switch.
• Convenient 2-Pack for Value and Versatility: This 2-pack offers excellent value, allowing you to keep an adapter at home, work, or in your bag. The lightweight, compact gunmetal gray aluminum body features a sleek design for easy portability.

3. Compatibility

This adapter is designed for wide compatibility with devices featuring a USB Type-C port and 3.5mm audio accessories.

3.1 Compatible Devices

• Smartphones: iPhone 15 series (15, 15 Pro, 15 Plus, 15 Pro Max), Samsung Galaxy S22/S21 Ultra/S21+/S21/S20 Ultra/S20 FE/S20 Z Flip/S20+/S20, Note 20 Ultra/20+/20/10+/10, Google Pixel 8, Huawei Mate60, and other Android Type-C phones.
• Tablets: iPad Pro, other Type-C enabled tablets.
• Laptops: MacBook, other Type-C enabled laptops/PCs.
• Gaming Consoles: PS5, Nintendo Switch (for audio output).
• Operating Systems: iOS, Android, Windows.

3.2 Compatible Audio Accessories

• Standard 3.5mm earphones, headphones, and headsets with 3-pole or 4-pole stereo mini plugs.
• Earphones/headsets with inline remote controls for playback/pause and volume adjustment.
• TRRS-compatible earphones/headsets for microphone and call functions.

3.3 Important Compatibility Notes

• This adapter is designed for standard headphones with an impedance of 50Ω or less. It is not compatible with high-impedance headphones (250Ω or above) or certain BOSE products.
• Simultaneous use with devices that have a combined charging and audio port (e.g., some iPad Pro models) is not supported.
• Not compatible with Apple genuine EarPods with a 3.5mm Headphone Plug.
• The microphone and call functions are exclusively for TRRS-compatible earphones/headsets.

4. Setup and Operation

4.1 Connecting the Adapter

1. Plug your 3.5mm earphones or headphones into the 3.5mm audio jack of the FONVOi adapter.
2. Insert the USB Type-C connector of the adapter into the Type-C port of your device (smartphone, tablet, laptop, etc.).
3. Your device should automatically recognize the adapter. No additional drivers are typically required.

This image shows the FONVOi Type-C to 3.5mm audio adapter connected to a laptop's USB-C port, with a pair of wired earphones plugged into the adapter's 3.5mm jack. The laptop screen displays music playback software. Below the image, text indicates 'Compatible models: Equipped with φ3.5mm stereo mini jack', illustrating the adapter's primary function.

4.2 Audio Playback

Once connected, your device's audio output will be routed through the adapter to your 3.5mm audio device. Simply play your desired audio content (music, videos, games) as usual.

4.3 Microphone and Remote Control Functions

If your 3.5mm earphones/headset are TRRS-compatible and feature an inline remote control, you can use the following functions:

• Microphone: For voice calls, video conferences, or voice commands.
• Play/Pause: Press the remote button once.
• Volume Adjustment: Use the volume up/down buttons on the remote.
• Next/Previous Track: Double-press or triple-press the remote button (functionality may vary by device/app).

A woman is shown happily using the FONVOi adapter connected to a tablet, with headphones on. The image highlights the adapter's support for microphone and line control. A crucial note below states: 'Note: Not compatible with Apple EarPods equipped with a 3.5mm plug. Headphone microphone function is not supported for these specific EarPods.', providing important compatibility information.

5. Maintenance

To ensure the longevity and optimal performance of your FONVOi adapter, please follow these maintenance guidelines:

• Keep Clean: Regularly wipe the adapter with a soft, dry cloth to remove dust and debris. Avoid using harsh chemicals or abrasive materials.
• Proper Storage: When not in use, store the adapter in a cool, dry place, away from direct sunlight and extreme temperatures.
• Handle with Care: Avoid excessive bending, twisting, or pulling of the cable, especially near the connectors. Despite its durable design, improper handling can cause damage.
• Avoid Moisture: Do not expose the adapter to water or other liquids. If it gets wet, disconnect it immediately and allow it to dry completely before reuse.

6. Troubleshooting

If you encounter any issues with your FONVOi adapter, please refer to the following troubleshooting steps:

• No Sound Output:
  • Ensure both the 3.5mm earphones/headphones and the Type-C adapter are securely connected.
  • Check your device's volume settings and ensure it's not muted.
  • Verify that your headphones are compatible (impedance 50Ω or less). High-impedance headphones (250Ω+) or certain BOSE products are not supported.
  • Test the adapter with another pair of 3.5mm headphones or another Type-C device to isolate the issue.
  • Ensure your device's audio output is set to the USB-C accessory if there are multiple options.
• Microphone or Inline Remote Not Working:
  • Confirm that your earphones/headset are TRRS-compatible (4-pole plug) for microphone functionality.
  • Ensure the remote control functions are supported by your specific device and application. Some devices or apps may have limited remote control compatibility.
  • Note that Apple genuine EarPods with a 3.5mm plug are not supported for microphone function via this adapter.
• Static or Noise During Playback:
  • Ensure the connections are firm and free from dust or debris.
  • Try disconnecting and reconnecting the adapter.
  • Avoid using the adapter simultaneously with devices that have a combined charging and audio port, as this can sometimes introduce interference.
  • Test with a different audio source or device to rule out external interference.
• Adapter Not Recognized by Device:
  • Ensure your device's Type-C port is clean and functional.
  • Restart your device and try again.
  • Test the adapter with another compatible Type-C device.

7. Specifications

A transparent view of the adapter's USB-C connector reveals the internal 'Smart DAC Chip'. The accompanying text explains that the built-in professional DAC chip enables lossless and pure audio conversion, ensuring high-quality sound output.

This image provides a detailed view of the adapter's durable construction. It features an illustration of the aluminum-magnesium alloy connector shell and a close-up of the double-shielded nylon braided cable. The text 'Durable design' is prominently displayed, with callouts for 'Aluminum-magnesium alloy shell' and 'Nylon braid (cable)', demonstrating the materials used for enhanced longevity.

The adapter is shown compactly placed inside a laptop sleeve, alongside a smartphone and a pair of earphones, highlighting its portability. The accompanying text states 'Lightweight and easy to carry size', emphasizing its design for on-the-go use.

8. Warranty and Support

8.1 Warranty Information

This FONVOi Type-C to 3.5mm Audio Adapter comes with a 1-year manufacturer's warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accident, unauthorized modification, or external causes.

8.2 Customer Support

For technical support, warranty claims, or any questions regarding your FONVOi product, please contact our customer service team through the platform where you purchased the product. Please have your order number and product model (FONVOi-USBC-3.5mm) ready when contacting support.