Introduction
The FiiO FW1 True Wireless HiFi Earbuds are designed to deliver a superior audio experience with advanced features such as Bluetooth 5.0, aptX codec support, and Knowles Balanced Armature drivers. This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your FW1 earbuds to ensure optimal performance and longevity.
Package Contents
Please check the package carefully to ensure all items are present:
- FW1 True Wireless Stereo HiFi Earbuds
- Charging case
- 3 different sizes of eartips (S, M, L)
- USB charging cable
- User guide

Specifications
| Feature | Specification |
|---|---|
| Model | True Wireless Bluetooth Earbuds FW1 |
| Bluetooth Chip | Qualcomm QCC3020 |
| Bluetooth Version | V5.0 |
| Supported Protocols | HSP/HFP/A2DP/AVRCP |
| Supported Codecs | SBC/AAC/aptX |
| Standby Time | ≥80 hours |
| Call Duration | About 7 hours |
| Music Playing Duration | About 7 hours (up to 21 hours with charging case) |
| Charging Time | ≤2 hours |
| Bluetooth Distance | ≥10 meters |
| Driver Type | Knowles Balanced Armature |
| Frequency Response Range | 20Hz - 20kHz |
| Battery Capacity (Charging Case) | 420mAh |
| Unit Weight | About 4.3g |
| Material | Plastic |
| Waterproof | Yes |
| Active Noise-Cancellation | Yes |
| With Microphone | Yes |
| Control Button | Yes |
| Volume Control | Yes |

Setup
1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case. The charging case features a Type-C charging port and four LED indicators to show the power level. A pulsing light indicates charging in progress.
- Place the earbuds into the charging case.
- Connect the USB charging cable to the Type-C port on the charging case and a power source.
- The LED indicators on the case will show the charging status. A full charge provides up to 21 hours of total playtime (7 hours from earbuds + 14 hours from case).


2. Bluetooth Pairing
The FW1 earbuds utilize Bluetooth 5.0 and Qualcomm TrueWireless Stereo plus dual transmission for stable and efficient connection.
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your mobile device, enable Bluetooth and search for available devices.
- Select "FiiO FW1" from the list of devices to connect.
- Once connected, the earbuds will automatically pair with your device when taken out of the case. The charging case has been upgraded with a Hall sensor for quicker and almost instantaneous connection upon opening.

3. Wearing the Earbuds
Choose the correct size of silicone eartips for a comfortable and secure fit. The FW1's compact design and skin-friendly eartips ensure a firm fit, suitable for daily use and sports activities.


Operating Instructions
1. Touch Controls
The FW1 earbuds feature intuitive touch controls for managing playback, calls, and other functions. Specific gestures for play/pause, skip tracks, answer/end calls, and activate voice assistant are typically detailed in the quick start guide included in the package.
2. Single and Dual Earbud Mode
Thanks to Qualcomm TrueWireless Stereo plus dual transmission, you can use either earbud independently or both together for a stereo experience.
- Single Earbud Mode: Either earbud can be connected singly for usage via Bluetooth.
- Dual Earbud Mode: Utilize both earbuds for a more complete listening experience.

3. Active Noise Cancellation (ANC)
The FW1 earbuds are equipped with Active Noise Cancellation technology to reduce ambient noise, allowing for a more immersive listening experience. This feature can typically be toggled via the touch controls.
4. Volume Control and Microphone
Volume can be controlled directly from the earbuds using touch gestures or from your connected device. The integrated microphone allows for clear hands-free calls.

Maintenance
1. Cleaning
Regular cleaning helps maintain sound quality and hygiene.
- Gently wipe the earbuds and charging case with a soft, dry, lint-free cloth.
- Remove eartips and clean them with mild soap and water, then dry thoroughly before reattaching.
- Use a cotton swab or small brush to carefully clean any debris from the earbud grilles and charging contacts.
2. Storage
When not in use, store the earbuds in their charging case to protect them from dust, damage, and to keep them charged.
3. Water Resistance
The FW1 earbuds are waterproof, offering protection against rain and perspiration. However, they are not designed for submersion in water. Avoid exposing them to excessive moisture or harsh chemicals.
Troubleshooting
If you encounter issues with your FiiO FW1 earbuds, please refer to the following common problems and solutions:
- Earbuds not pairing: Ensure both earbuds are in the charging case, then open the lid to initiate pairing mode. Check your device's Bluetooth settings and try re-pairing.
- Only one earbud working: This may occur if only one earbud is connected in single earbud mode. Place both earbuds back in the case, close the lid, then open it again to reset and allow them to connect in dual mode.
- No sound or poor sound quality: Check the volume level on both your device and the earbuds. Ensure the earbuds are clean and free of debris. Try re-pairing the earbuds.
- Charging issues: Ensure the charging cable is securely connected to both the case and the power source. Check the charging contacts on the earbuds and inside the case for any obstructions.
- Disconnection issues: The FW1 features Bluetooth 5.0 and LDS antenna for stable connection. Ensure there are no major obstructions between the earbuds and your device, and that you are within the 10-meter Bluetooth range.

User Tips
- Optimal Fit: Experiment with all three sizes of eartips (S, M, L) to find the most comfortable and secure fit. A good seal is crucial for optimal sound quality and noise cancellation.
- Maximize Battery Life: Always return the earbuds to their charging case when not in use. This not only protects them but also ensures they are always charged and ready for your next listening session.
- Sound Quality: For the best audio experience, ensure your device supports aptX codec and that it is enabled. The Knowles Balanced Armature drivers are designed for natural, high-fidelity sound.
- Connectivity: The LDS antenna technology enhances signal stability. For best results, keep your connected device relatively close to the earbuds, especially in environments with high interference.
Warranty and Support
FiiO products are manufactured to high quality standards. For warranty information, technical support, or service inquiries, please refer to the official FiiO website or contact the authorized dealer from whom you purchased the product. Keep your proof of purchase for warranty claims.





