1. Introduction
Thank you for choosing the SANSUI F39 Mini Wireless Bluetooth Speaker. This portable speaker offers high-quality audio with versatile connectivity options, including Bluetooth, AUX, and USB/TF card playback. It also features an FM radio and a compact design, making it ideal for various indoor and outdoor activities. Please read this manual carefully before use to ensure proper operation and to maximize your enjoyment of the product.
Figure 1: SANSUI F39 Mini Wireless Bluetooth Speaker (Black)
2. Package Contents
Please check the box for the following items:
- Bluetooth Speaker × 1
- Charging Cable × 1
- User Manual × 1
Figure 2: Package contents including speaker, charging cable, and manual
3. Specifications
| Feature | Specification |
|---|---|
| Model | F39 |
| Brand | SANSUI (WXLCR) |
| Product Name | Portable Bluetooth Speaker |
| Colors Available | Green, Black, Red |
| Dimensions (L×W×H) | 89 × 77 × 41 mm |
| Weight | 0.26 kg |
| Speaker Configuration | 1.5 inch round internal magnetic speaker |
| Speaker Size | 1.5 inch |
| Audio Crossover | Full-Range |
| Number of Loudspeaker Enclosures | 1 |
| PMPO (Peak Music Power Output) | 20W |
| Output Power (RMS) | 5W |
| Channels | 2 (2.0) |
| Impedance | 2-4 Ohm |
| Frequency Response | 100Hz-20KHz |
| Signal-to-Noise Ratio (SNR) | ≥70dB |
| Bluetooth Version | 5.3 |
| Maximum Wireless Range | 10-20 meters |
| Supported Codecs | Apt-X HD |
| Supported Audio Formats | MP3, WAV, FLAC, APE |
| Communication | Bluetooth, AUX, USB |
| Charging Port | USB-C / Micro USB |
| Charging Voltage | DC 5V/0.5A (USB 5-20V DC compatible) |
| Battery Capacity | 900mAh |
| Playback Time | 3-6 hours |
| Charging Time | 1-3 hours |
| Power Source | Battery, USB |
| Material | Plastic (Cabinet Material: Plastic) |
| Features | Phone Function, Playback (Radio, MP3), Display Screen, Support APP, Support Memory Card, Inbox adaptor |
| FM Radio Frequency | 87.5-108MHz |
| Voice Control | No |
| Built-in Microphone | No |
| Remote Control | No |
| Waterproof | No |
| Certifications | CE |
| Recommended Use | Home, Outdoor, Office, Travel, Sports, Leisure, Entertainment, Study |
Figure 3: Product parameters (Chinese text, translated in table above)
4. Button Functions
Familiarize yourself with the speaker's controls:
- Power Button: Long press for 3 seconds to turn the speaker on or off. Short press to play or pause audio.
- Volume + Button: Short press to increase the volume. Long press to skip to the next song.
- Volume - Button: Short press to decrease the volume. Long press to go back to the previous song.
- Mode Button: Press to switch between Bluetooth mode and AUX mode.
- LED Indicator:
- Blue flashing: Indicates pairing mode.
- Blue solid: Indicates a successful Bluetooth connection.
- Red solid: Indicates the speaker is charging.
- Red off: Indicates charging is complete.
Figure 4: Speaker control panel and LED indicator
5. Setup and Charging
5.1 Initial Charging
- Connect the provided charging cable to the speaker's charging port (USB-C / Micro USB) and the other end to a compatible USB charger (DC 5V/0.5A recommended).
- The LED indicator will show a solid red light, indicating that the speaker is charging.
- Once fully charged (approximately 1-3 hours), the red LED light will turn off.
5.2 Powering On/Off
- To turn on the speaker, long press the Power button for 3 seconds.
- To turn off the speaker, long press the Power button for 3 seconds again.
6. Operating Modes
6.1 Bluetooth Connection
- Ensure the speaker is turned on. The LED indicator will flash blue, signifying it is in pairing mode.
- On your mobile phone or other Bluetooth-enabled device, open the Bluetooth settings.
- Search for available devices and select "F39" (or similar name) from the list to connect.
- Once connected, the LED indicator will show a solid blue light. You can now play music and answer calls through the speaker.
6.2 AUX Mode
- Connect a 3.5mm audio cable (not included) to the AUX port on the speaker and the audio output jack of your device.
- The speaker will automatically switch to AUX mode.
6.3 USB/TF Card Playback
The speaker supports playback from USB drives and TF (MicroSD) cards. Simply insert your USB drive or TF card into the respective port. The speaker will automatically detect and play supported audio formats (MP3, WAV, FLAC, APE).
Figure 5: Connectivity options (USB, TF card, OTG, Headset modes)
6.4 FM Radio Mode
To use the FM radio function, switch to FM mode using the Mode button. The speaker will automatically scan for available radio stations. Use the Volume +/- buttons (long press) to navigate between stations.
7. Maintenance
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Keep the speaker dry. Do not expose it to water or excessive moisture.
- Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid dropping or subjecting the speaker to strong impacts.
8. Troubleshooting
| Problem | Solution |
|---|---|
| Cannot connect Bluetooth | Restart both the speaker and your phone/device, then attempt to reconnect. |
| No sound | Check the volume level on both the speaker and your connected device. Ensure the speaker is in the correct mode (Bluetooth or AUX). |
| Battery runs out fast | Ensure the speaker is fully charged before use. Lower the volume during playback to conserve battery life. |
| Poor FM radio reception | Try repositioning the speaker to find a better signal. Ensure no strong interference sources are nearby. |
9. User Tips
- For the best audio experience, experiment with different music genres to appreciate the speaker's very good bass and clear sound.
- When using the FM radio, try different locations to optimize signal reception for clear and pleasant listening.
- The Bluetooth connectivity provides a great surround sound illusion; position the speaker strategically to enhance this effect.
- Despite its small size, this speaker delivers impressive volume and sound quality, making it a versatile companion for various activities.
Video 1: Product demonstration showcasing the speaker's design and sound.
10. Safety Warnings
WARNING: Risk of fire, explosion, and burns.
Small parts are included. Keep away from children under 3 years old to prevent choking risk.
- Do not disassemble, puncture, or throw the battery into fire.
- Do not use the speaker in high temperature, humid, or dusty environments.
- Avoid playing at maximum volume for extended periods to prevent hearing damage.
- Keep the speaker away from children under 3 years old to prevent choking hazards.
- Stop using immediately if there is overheating, smoke, or an abnormal smell.
11. Warranty and Support
This product comes with a 3-month warranty from the date of purchase.
For any after-sales service inquiries or technical support, please contact us via email:
Service Email: support@123.com
For a more detailed user guide, you may refer to the official PDF manual: SANSUI F39 User Manual (PDF)