Introduction
Thank you for choosing the EarFun Air Pro 4i Wireless Earbuds. This manual provides detailed instructions for setting up, operating, and maintaining your earbuds to ensure the best possible audio experience. Please read this manual thoroughly before use and keep it for future reference.
Image: EarFun Air Pro 4i Wireless Earbuds with charging case, showcasing features like 50dB ANC, Hi-Res Audio, LDAC, 3D Sound, 40-hour playback, 6 mics + AI for calls, wireless charging, multipoint, and IP55 water resistance.
Package Contents
- EarFun Air Pro 4i Wireless Earbuds
- Charging Case
- Ear Tips (XS, S, M, L, XL)
- USB-C Charging Cable
- User Manual
Setup
1. Charging the Earbuds and Case
Before first use, fully charge both the earbuds and the charging case. Connect the USB-C cable to the charging port on the case and a power source. The case also supports wireless charging.
Image: The EarFun Air Pro 4i charging case placed on a wireless charging pad, illustrating its wireless charging capability.
2. Pairing with Your Device
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device (smartphone, tablet, etc.), enable Bluetooth.
- Select "EarFun Air Pro 4i" from the list of available Bluetooth devices.
- For Android devices, Google Fast Pair allows for quick pairing by simply opening the case near your device and tapping the on-screen prompt.
Image: A visual representation of Google Fast Pair for quick device connection and Find Hub for locating lost earbuds.
3. Choosing the Right Ear Tips
Selecting the correct ear tip size is crucial for optimal sound quality and noise cancellation. The EarFun Air Pro 4i comes with five sizes (XS, S, M, L, XL) of dual-hardness silicone ear tips. Experiment with different sizes to find the best fit for your ears. A snug fit ensures effective bass response and noise isolation.
Image: A diagram illustrating the dual-hardness ear tip design, with a firmer core for bass and a softer umbrella for comfort, along with various sizes.
Operating Instructions
1. Touch Controls
The EarFun Air Pro 4i features intuitive touch controls on each earbud. You can customize these controls via the EarFun Audio app.
| Action | Left Earbud | Right Earbud |
|---|---|---|
| Play/Pause | Single Tap | Single Tap |
| Next Track | Double Tap | Double Tap |
| Previous Track | Triple Tap | N/A |
| Volume Up | N/A | Press & Hold |
| Volume Down | Press & Hold | N/A |
| Answer/End Call | Single Tap | Single Tap |
| Reject Call | Press & Hold | Press & Hold |
| Activate Voice Assistant | Triple Tap | Triple Tap |
| Switch ANC Modes | Double Tap | Double Tap |
2. Active Noise Cancellation (ANC) and Transparency Modes
The EarFun Air Pro 4i features advanced Hybrid ANC with QuietSmart 3.0 technology, offering up to 50dB of noise reduction. It also includes an adaptive ANC feature that adjusts noise reduction intensity based on your environment and fit. You can switch between ANC, Normal, and Transparency modes using the touch controls or the EarFun Audio app.
- ANC Mode: Blocks out ambient noise for an immersive listening experience.
- Transparency Mode: Allows you to hear your surroundings while still enjoying your audio, useful for awareness in urban environments.
- Normal Mode: Standard audio playback without noise cancellation or transparency.
Note: The effectiveness of noise cancellation varies depending on the fit of the earbuds. Ensure a snug fit for maximum performance.
Image: A diagram illustrating the multi-faceted optimization for noise cancellation, including dual vent holes and advanced noise-cancelling filters.
3. Audio Features (LDAC & 3D Sound)
The EarFun Air Pro 4i supports LDAC for Hi-Res Audio Wireless, certified by the Japan Audio Society. It also features 3D Sound technology to create an immersive, lifelike audio experience, making instruments and vocals feel distinctly positioned. Activate "Theater Mode" in the EarFun Audio app to experience this spatial audio. Note that LDAC cannot be used simultaneously with Theater Mode or Multipoint Connection.
Image: A woman enjoying music with the earbuds, with graphics indicating LDAC Hi-Res Audio and 3D Surround Sound capabilities.
4. Clear Call Technology
Equipped with 6 microphones and AI noise reduction technology, the EarFun Air Pro 4i ensures clear calls even in noisy environments. The AI technology detects and effectively suppresses ambient noise, allowing your voice to be transmitted clearly to the other party.
Image: A woman making a call with the earbuds in a cafe, demonstrating the clear call feature.
5. Multipoint Connection
The EarFun Air Pro 4i supports multipoint connection, allowing you to connect to two devices simultaneously. For example, you can connect to both your smartphone and your laptop and seamlessly switch between them.
Image: Earbuds connected to both a laptop and a smartphone, illustrating the multipoint connection feature.
6. EarFun Audio App
Download the EarFun Audio app for additional features and customization. The app allows you to:
- Customize touch controls.
- Adjust equalizer settings.
- Switch between ANC, Normal, and Transparency modes.
- Access "Find My Earbuds" feature to locate lost earbuds by playing a sound.
- Utilize Android's Find Hub tracker for location tracking.
Image: Screenshots of the EarFun Audio app, highlighting features like equalizer, hearing health, finding earbuds, and white noise.
Charging
The earbuds provide up to 9.5 hours of playback on a single charge. With the charging case, total playback time extends to 40 hours. The case supports both USB-C fast charging and wireless charging. A quick 10-minute charge provides 2 hours of playback.
Image: A diagram illustrating the battery life: 9.5 hours for earbuds alone and 40 hours with the charging case, along with fast charging capabilities.
Maintenance
1. Cleaning
Regularly clean the earbuds and charging case to maintain optimal performance. Use a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials. Clean the ear tips with water and mild soap if necessary, ensuring they are completely dry before reattaching.
2. Water and Dust Resistance
The EarFun Air Pro 4i earbuds are IP55 rated for dust and water resistance, meaning they can withstand sweat and light splashes. They are suitable for workouts and outdoor activities. However, the charging case is not waterproof. Please ensure the earbuds are dry before placing them back in the charging case.
Image: EarFun Air Pro 4i earbuds with water droplets, demonstrating their IP55 water resistance.
3. Storage
Store the earbuds in their charging case when not in use to protect them and keep them charged. Avoid exposing them to extreme temperatures, humidity, or direct sunlight.
Troubleshooting
| Problem | Solution |
|---|---|
| Earbuds not pairing | Ensure earbuds are charged. Place them in the case, close, then open to re-enter pairing mode. Check your device's Bluetooth settings. |
| No sound from one earbud | Ensure both earbuds are charged. Try resetting the earbuds (refer to the app or full manual for specific steps). |
| Poor sound quality | Check ear tip fit. Ensure earbuds are clean. Try disabling LDAC if experiencing connection issues (LDAC is not compatible with multipoint or Theater Mode). |
| Noise cancellation not effective | Ensure a tight seal with the correct ear tip size. Adjust ANC settings in the EarFun Audio app. |
| Earbuds lost | Use the "Find My Earbuds" feature in the EarFun Audio app to play a sound or use Android's Find Hub for location tracking. |
| Latency in gaming/video | Activate Game Mode in the EarFun Audio app for ultra-low latency (0.05s). If experiencing interruptions, turn off Game Mode when not needed. |
Image: A man playing a mobile game with the earbuds, highlighting the low latency feature for gaming.
Specifications
| Feature | Detail |
|---|---|
| Model Name | EarFun Air Pro 4i |
| Model Number | TW230 |
| Bluetooth Version | 5.4 |
| Bluetooth Range | Up to 15 meters (49 feet) |
| Noise Control | Active Noise Cancellation, Adaptive Noise Cancellation, Hybrid Noise Cancellation |
| Driver Type | Dynamic Driver |
| Driver Size | 11 mm |
| Frequency Response | 20Hz - 40kHz |
| Audio Latency | 50 ms (Game Mode: 0.05s) |
| Earbud Playtime | Up to 9.5 hours |
| Total Playtime (with case) | Up to 40 hours |
| Case Battery Capacity | 520 mAh |
| Case Charging Time | 2 hours (USB-C), Wireless charging supported |
| Water Resistance | IP55 (earbuds only) |
| Weight | 51.3 grams (total) |
| Compatible Devices | Android smartphones, other Bluetooth-enabled devices, Windows PCs, Walkman, etc. |
| Control Method | App, Touch |
Warranty & Support
Your EarFun Air Pro 4i comes with an 18-month warranty from the date of purchase. In the event of any product defects or malfunctions under normal use, please contact our customer support. We offer new product exchanges, returns, or refunds within the warranty period.
For further assistance, please visit the official EarFun website or contact our customer service team through the EarFun Audio app.
