1. Introduction
Thank you for purchasing the SANSUI F81 Portable Bluetooth Speaker. This device combines a vintage aesthetic with modern audio technology, offering multiple playback options including Bluetooth, FM radio, TF card, USB, and AUX input. Its compact design and long-lasting battery make it ideal for various scenarios, from camping to casual listening. This manual provides detailed instructions on how to set up, operate, and maintain your speaker to ensure optimal performance and longevity.
2. Safety Information
- Read all instructions carefully before using the product.
- Keep the speaker away from water, moisture, and extreme temperatures. This product is not waterproof.
- Do not disassemble, repair, or modify the device. Refer all servicing to qualified personnel.
- Use only the specified charging voltage (DC 5V/1A).
- Avoid prolonged exposure to loud volumes to prevent hearing damage.
- Keep out of reach of children.
3. Package Contents
Please check the package for the following items:
- SANSUI F81 Portable Bluetooth Speaker
- Charging Cable (Type-C)
- User Manual
- Wrist Strap
4. Product Overview
The SANSUI F81 features a compact design with intuitive controls and multiple connectivity options.
4.1. Physical Features
- Dimensions: 130mm (Length) x 49mm (Width) x 71.8mm (Height)
- Weight: 353g
- Cabinet Material: Plastic
- Speaker Type: Portable, Full-Range
- Light: Colorful RGB Light (Acousto-optic synchronization)
- Handle: Silicone portable handle for easy carrying.
4.2. Controls and Ports
Refer to Figure 4 for the location of the following controls and ports:
- Display Screen: Shows current mode, track number, or frequency.
- Digital Buttons (0-9): For direct channel/song selection.
- Light Mode Key: Controls the colorful RGB light effects.
- Record Key: Initiates recording (functionality may vary by mode).
- Delete Key: Deletes recorded files or presets.
- Set Key: Used for setting radio stations or other functions.
- Previous Song / Volume -: Short press for previous track, long press for volume down.
- Next Song / Volume +: Short press for next track, long press for volume up.
- Mode Key / Cycle Key: Switches between playback modes (Bluetooth, FM, TF, USB, AUX).
- Pause / Play Key: Plays or pauses audio.
- Power On/Off Key / Call Key: Long press to power on/off. Short press to answer/end calls in Bluetooth mode.
- USB Port: For USB drive playback.
- TF Card Slot: For TF (MicroSD) card playback.
- AUX Input: For connecting external audio devices via a 3.5mm cable.
- Type-C Charging Port: For charging the speaker.
5. Setup
5.1. Charging the Speaker
- Connect the provided Type-C charging cable to the speaker's charging port.
- Connect the other end of the cable to a DC 5V/1A USB power adapter (not included).
- The charging indicator will illuminate. Once fully charged, the indicator may change color or turn off.
- A full charge provides approximately 8 hours of playback at 30% volume or 3 hours at 100% volume.
5.2. Powering On/Off
- To Power On: Long press the Power On/Off key until the display screen lights up.
- To Power Off: Long press the Power On/Off key again until the display screen turns off.
6. Operating Instructions
The SANSUI F81 supports multiple playback modes. Use the Mode Key to switch between them.
6.1. Bluetooth Mode
- Power on the speaker. It will automatically enter Bluetooth pairing mode (indicated by a flashing 'BLUE' on the display).
- Enable Bluetooth on your smartphone or other device and search for "SANSUI F81".
- Select "SANSUI F81" to pair. Once connected, the speaker will emit a confirmation tone, and 'BLUE' will stop flashing.
- You can now play audio from your connected device.
6.2. FM Radio Mode
- Press the Mode Key until the speaker enters FM Radio mode.
- To auto-scan and save stations: Long press the Play/Pause button. The speaker will scan and store available FM stations.
- To manually select a station: Use the digital buttons to input the frequency (e.g., 9.0.5 for 90.5 MHz).
- Use the Previous/Next Song buttons to navigate through saved stations.
6.3. TF Card / USB Playback Mode
- Insert a TF (MicroSD) card or USB drive into the corresponding slot. The speaker will automatically switch to the respective playback mode.
- The built-in intelligent decoder supports multiple lossless audio formats including APE, FLAC, WAV, and MP3.
- Use the Previous/Next Song buttons to change tracks.
- Use the digital buttons to directly select a track number (e.g., 1.9 for track 19).
6.4. AUX Input Mode
- Connect an external audio device (e.g., computer, smartphone) to the speaker's AUX port using a 3.5mm audio cable.
- The speaker will automatically switch to AUX mode or you may need to press the Mode Key.
- Audio will now play through the speaker from your connected device. Volume can be controlled on both the speaker and the external device.
6.5. Hands-free Calling
When connected via Bluetooth to a smartphone:
- Answer Call: Short press the Power On/Off / Call Key.
- End Call: Short press the Power On/Off / Call Key during a call.
- The speaker features a built-in high-definition noise-reduction microphone for clear calls.
6.6. Volume and Track Control
- Volume Up: Long press the 'Volume +' button.
- Volume Down: Long press the 'Volume -' button.
- Next Track: Short press the 'Next Song' button.
- Previous Track: Short press the 'Previous Song' button.
6.7. RGB Light Control
Press the Light Mode Key to cycle through different RGB light effects or to turn the lights off.
7. Maintenance
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Avoid exposing the speaker to direct sunlight or extreme temperatures for extended periods.
- When not in use for a long time, charge the battery at least once every three months to prolong its lifespan.
- Store the speaker in a cool, dry place.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery. | Charge the speaker fully. |
| No sound. | Volume too low; incorrect mode; device not connected. | Increase volume; switch to correct mode (Bluetooth, AUX, etc.); ensure device is paired/connected. |
| Bluetooth pairing failed. | Speaker not in pairing mode; device too far; interference. | Ensure speaker is in pairing mode; move device closer; restart both devices. |
| TF card/USB not playing. | Unsupported file format; card/drive not inserted correctly; corrupted files. | Ensure files are APE, FLAC, WAV, or MP3; reinsert card/drive; try different files. |
| Poor FM radio reception. | Weak signal; environmental interference. | Move to an open area; try auto-scanning again. |
9. Specifications
| Feature | Detail |
|---|---|
| Model | F81 |
| Brand | SANSUI (HONOURSACY) |
| Dimensions (L x W x H) | 130mm x 49mm x 71.8mm |
| Weight | 353g |
| Battery Capacity | 1200mAh |
| Input Power | DC 5V/1A (<25W) |
| Bluetooth Version | 5.3 |
| Maximum Wireless Range | <10m |
| Sound Mode | Hi-Res Sound Mode |
| Sensitivity | 75dB |
| Total Harmonic Distortion | 0.5% |
| Audio Crossover | Full-Range |
| Number of Loudspeaker Enclosure | 1 |
| Channels | 2 (2.0) |
| Power Source | AC, Battery |
| Communication | AUX, USB, Bluetooth, Audio Line |
| Playback Function | Radio, MP3, FLAC, APE, WAV |
| Support Memory Card | Yes (TF Card) |
| Waterproof | No |
| Voice Control | No |
| Support APP | No |
| Certification | CE |
10. User Tips
- For optimal sound quality, ensure your audio source files are of high quality (e.g., FLAC, WAV).
- When using the FM radio, extend the antenna (if available) or move to an open area for better reception.
- To maximize battery life, consider using the speaker at moderate volume levels.
- The digital buttons offer a quick way to navigate tracks or radio stations, making it convenient for quick selections.
11. Warranty and Support
For any product-related inquiries, technical support, or warranty claims, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.
