Introduction
Thank you for choosing the SXFJF L350 Bluetooth Over-Ear Wireless Headphones. This manual provides essential information for the safe and efficient use of your headphones. Please read it carefully before use and retain it for future reference.
Product Overview
The SXFJF L350 headphones are designed for comfort and high-fidelity audio, featuring active noise cancellation, deep bass, and a built-in microphone for hands-free communication. Their foldable design enhances portability.
Image: SXFJF L350 Red Bluetooth Over-Ear Wireless Headphones. This image displays the red variant of the L350 headphones, highlighting the over-ear design, control buttons on the earcup, and the 'Wireless' branding.
Key Features:
- Active Noise Cancelling Function
- Premium Audio with Deep Bass
- 40mm Horn Drivers
- 105dB Sensitivity and 100dB Signal-to-Noise Ratio
- Foldable Structure for Portability
- Soft Memory-Protein Earmuffs for Comfort
- Ergonomic Fit
- Bluetooth 5.0 Connectivity with 15-meter working range
- 8-10 Hours Music Playback Time
- 1300 Hours Standby Time
- Built-in Microphone for Hands-Free Calls
- 3.5mm Stereo Interface for Wired Connection
Setup
1. Charging the Headphones
Before first use, fully charge your headphones. Use the provided USB charging cable.
- Connect the Micro USB end of the charging cable to the charging port on the headphone earcup.
- Connect the USB-A end to a 5V USB power source (e.g., computer USB port, wall adapter).
- The LED indicator will illuminate during charging and change color or turn off when fully charged.
2. Bluetooth Pairing
Follow these steps to pair your headphones with a Bluetooth-enabled device:
- Ensure the headphones are turned off.
- Press and hold the Power button until the LED indicator flashes red and blue alternately, indicating pairing mode.
- On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "L350" or "SXFJF Headphones" from the list of found devices.
- Once paired, the LED indicator will typically show a solid blue light or flash blue slowly.
- If prompted for a password, enter "0000".
3. Wired Connection (Optional)
For devices without Bluetooth or when the battery is depleted, you can use the 3.5mm audio cable:
- Connect one end of the 3.5mm audio cable to the audio input jack on the headphones.
- Connect the other end to the 3.5mm audio output jack on your device.
- The headphones will function as wired headphones, and Bluetooth features will be disabled.
Video: SXFJF Bluetooth Over-Ear Wireless Headphones. This video provides a visual overview of the headphones, demonstrating their design, features, and various color options. It highlights the active noise cancellation, deep bass, and comfortable fit.
Operating Instructions
Power On/Off
- Power On: Press and hold the Power button for approximately 3 seconds until the LED indicator lights up.
- Power Off: Press and hold the Power button for approximately 3 seconds until the LED indicator turns off.
Music Playback
- Play/Pause: Press the Play/Pause button once.
- Next Track: Press and hold the Volume Up (+) button.
- Previous Track: Press and hold the Volume Down (-) button.
Call Management
- Answer/End Call: Press the Play/Pause button once.
- Reject Call: Press and hold the Play/Pause button for 2 seconds.
- Redial Last Number: Double-press the Play/Pause button.
Volume Control
- Increase Volume: Press the Volume Up (+) button.
- Decrease Volume: Press the Volume Down (-) button.
Maintenance
Proper maintenance ensures the longevity and performance of your headphones:
- Cleaning: Use a soft, dry cloth to clean the headphones. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the headphones in a cool, dry place, away from direct sunlight and extreme temperatures. Utilize the foldable design for compact storage.
- Avoid Water: These headphones are not waterproof. Avoid exposure to water or excessive moisture.
- Handle with Care: Do not drop, disassemble, or modify the headphones.
Troubleshooting
If you encounter issues with your headphones, refer to the following common problems and solutions:
| Problem | Solution |
|---|---|
| Headphones do not power on. | Ensure the headphones are fully charged. Connect to a power source and try again. |
| Cannot pair with device. | Ensure headphones are in pairing mode (LED flashing red/blue). Turn off and on Bluetooth on your device. Move closer to the device. |
| No sound or low volume. | Check volume levels on both headphones and your device. Ensure headphones are properly paired or connected via audio cable. |
| Poor sound quality. | Ensure there are no obstructions between the headphones and your device. Avoid interference from other wireless devices. Try a wired connection. |
| Microphone not working. | Ensure the headphones are properly connected and selected as the input device on your phone/computer. |
Specifications
Technical specifications for the SXFJF L350 Bluetooth Over-Ear Wireless Headphones:
| Feature | Detail |
|---|---|
| Bluetooth Version | Bluetooth 5.0 |
| Working Range | Up to 15 meters |
| Music Time | 8-10 hours |
| Standby Time | 1300 hours |
| Battery Capacity | 200 mAh |
| Charging Voltage | 5V |
| Charging Current | 5V500mA |
| Charging Interface | Micro USB |
| Plug Type | 3.5mm Stereo Interface |
| Horn Specification | 40mm |
| Load Power | 50mW |
| Supply Voltage | 3.3-4.2V |
| SNR (Signal-to-Noise Ratio) | 100dB |
| Sensitivity | 105dB |
| Working Current | 30mA |
| Frequency Range | 24GHz-2480GHz |
Warranty and Support
For warranty information, product support, or any issues not covered in this manual, please refer to the product detail page on Amazon or contact SXFJF customer service directly. Contact details are typically available on the product packaging or the seller's Amazon storefront.