Introduction
Thank you for choosing the FIFINE X3 Wireless Bluetooth Headphones. This manual provides detailed instructions for setting up, operating, and maintaining your headphones to ensure optimal performance and longevity. Please read this manual carefully before use.
Package Contents
Please check the package for the following items:
- 1 x FIFINE X3 Wireless Bluetooth Headphones
- 1 x USB-A to USB-C Charging Cable
- 1 x User Manual

Product Overview
Familiarize yourself with the various components and controls of your FIFINE X3 headphones:

- ANC Key: Activates/deactivates Active Noise Cancellation.
- Volume Keys: Adjusts volume up or down.
- MFB Key (Multi-Function Button): Controls power, playback, and calls.
- Indicator Light: Shows power, pairing, and charging status.
- Charging Port: USB-C port for charging the headphones.
- AUX Audio Interface: 3.5mm jack for wired audio connection (audio cable not included).
- MIC Jack: For external microphone connection (microphone not included).
Setup
Bluetooth Pairing
- Ensure the headphones are charged.
- Press and hold the MFB key until the indicator light flashes, indicating pairing mode.
- On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "FIFINE X3" from the list of devices.
- Once connected, the indicator light will show a steady blue or turn off, depending on the model.

Multipoint Connection
The FIFINE X3 supports connecting to two devices simultaneously, allowing seamless switching between music, calls, and chat.
- Connect the headphones to your first device via Bluetooth as described above.
- Disable Bluetooth on the first device.
- Connect the headphones to your second device via Bluetooth.
- Re-enable Bluetooth on the first device. The headphones should automatically connect to both devices.
- You can now switch audio sources between the two connected devices.

Operating Instructions
Power On/Off
- Power On: Press and hold the MFB key for approximately 3 seconds.
- Power Off: Press and hold the MFB key for approximately 5 seconds.
Music Playback
- Play/Pause: Short press the MFB key.
- Next Track: Double press the MFB key.
- Previous Track: Triple press the MFB key.
Call Management
- Answer/End Call: Short press the MFB key.
- Reject Call: Press and hold the MFB key for 2 seconds.
ANC, Transparency, Bass, and Game Modes
The FIFINE X3 headphones offer various listening modes controlled by touch functions:
- 1 x Continuous Touch: Activates Temporary Transparency Mode, allowing you to hear your surroundings.
- 2 x Touch: Activates Bass Mode for enhanced low-frequency sound.
- 3 x Touch: Activates Game Mode for optimized audio during gaming.

Volume Control
- Volume Up: Press the '+' volume key.
- Volume Down: Press the '-' volume key.
Charging
To charge your FIFINE X3 headphones:
- Connect the USB-A end of the charging cable to a power adapter (not included) or a computer's USB port.
- Connect the USB-C end to the charging port on your headphones.
- The indicator light will show charging status (e.g., red for charging, off or green for fully charged).
A full charge takes approximately 2.5 hours and provides up to 65 hours of total playtime.

Maintenance
- Clean the headphones regularly with a soft, dry cloth.
- Avoid exposing the headphones to extreme temperatures, humidity, or liquids.
- Store the headphones in a cool, dry place when not in use. The foldable design allows for compact storage.
- Do not attempt to disassemble or repair the headphones yourself, as this will void the warranty.

Troubleshooting
- Headphones won't turn on: Ensure the headphones are fully charged.
- Cannot pair with device: Make sure Bluetooth is enabled on your device and the headphones are in pairing mode. Try restarting both devices.
- No sound: Check the volume levels on both the headphones and your connected device. Ensure the headphones are correctly paired.
- Poor sound quality: Move closer to your connected device to avoid interference. Check for any obstructions between the headphones and the device.
Specifications
| Feature | Specification |
|---|---|
| Brand Name | FIFINE |
| Model | X3 |
| Material | Plastic, Leather |
| Battery Life | Up to 65 hours |
| Charging Method | Cable (USB-A to USB-C) |
| Bluetooth Version | 5.3 |
| Features | Dual Connection, Active Noise-Cancellation, Volume Control, Control Button |
| Active Noise-Cancellation | Yes (Depth of noise reduction -25dB) |
| Vocalism Principle | Dynamic |
| Driver | 40mm DLC Composite Dynamic Driver |
| Communication | Wireless (Bluetooth) |
| Style | Over-ear Wireless Headphones |
| Certifications | CE, FCC, KC |
| Package Dimensions (L x W x H) | 19 cm x 18 cm x 10 cm |
| Package Weight | 0.542 kg |
Please note: Audio cable and external microphone are not included.
User Tips
- Universal Compatibility: The FIFINE X3 headphones are compatible with both iPhone and Android devices, as well as other Bluetooth-enabled devices, thanks to their advanced Bluetooth 5.3 connectivity.
- Comfortable Fit: The soft and supple memory foam earpads are designed for comfortable and secure fit during extended listening sessions.
Safety Information
- Do not use the headphones at high volume for prolonged periods to prevent hearing damage.
- Do not use the headphones while driving or in situations where you need to hear your surroundings.
- Keep the headphones away from water and moisture.
- Dispose of the product and its battery responsibly according to local regulations.
Warranty and Support
For warranty information and technical support, please refer to the official FIFINE website or contact your retailer. Keep your purchase receipt as proof of purchase.





