1. Introduction
The SANSUI F53 is a versatile portable multimedia speaker designed for audio and video playback. It features a 4.3-inch LED display, FM radio, Bluetooth connectivity, and supports playback from TF cards and USB drives. Its compact design and long-lasting battery make it ideal for both home and outdoor use.
Figure 1: SANSUI F53 Wireless Bluetooth Speaker (Grey).
Video 1: SANSUI F53 Speaker showcasing its display, time/calendar function, and video playback capabilities.
2. Package Contents
Please check the package for the following items:
- SANSUI F53 Wireless Bluetooth Speaker
- USB Charging Cable (Type-C)
- User Manual (this document)
- Lanyard
3. Device Layout and Controls
Familiarize yourself with the buttons and ports on your SANSUI F53 speaker.
Figure 2: Top view of the SANSUI F53 with control buttons.
Controls:
- Numeric Keypad (0-9): For direct song selection or frequency input in FM mode.
- Menu Button: Accesses device menu.
- Return Button: Navigates back in menus.
- Volume Control Buttons: Increase/decrease volume.
- Play/Pause Button: Controls media playback.
- Next/Previous Track Buttons: Skips tracks or navigates.
Ports:
- USB Port: For USB drive playback.
- TF Card Slot: For TF (MicroSD) card playback.
- Type-C Charging Port: For charging the device.
- Headphone Jack: For private listening.
4. Setup
4.1 Charging the Device
- Connect the provided Type-C USB cable to the charging port on the speaker.
- Connect the other end of the USB cable to a compatible USB power adapter (DC 5V/2A recommended) or a computer's USB port.
- The LED display will indicate charging status. A full charge ensures long-lasting battery life (built-in 3600mAh lithium battery).
4.2 Powering On/Off
- Press and hold the Power button (usually located on the side or top) for a few seconds to turn the speaker ON or OFF.
- The LED display will light up upon powering on.
5. Operating Instructions
5.1 Bluetooth Connection
Connect your SANSUI F53 to a mobile phone or tablet via Bluetooth for wireless audio playback.
- Ensure the speaker is powered on and in Bluetooth mode (indicated on the display). If not, navigate to Bluetooth mode using the menu or mode button.
- On your mobile device, enable Bluetooth and search for available devices.
- Select "SANSUI F53" from the list of devices.
- Once connected, you can play music from your device through the speaker.
Figure 3: Bluetooth connection for audio playback.
5.2 FM Radio Operation
The SANSUI F53 features FM frequency modulation, allowing you to listen to radio stations.
- Switch the speaker to FM Radio mode.
- To search for stations:
- Automatic Search: Press and hold the Play/Pause button to initiate an automatic scan for available FM stations. The speaker will save found stations.
- Manual Input: Use the numeric keypad (0-9) to directly enter a desired frequency (e.g., 98.5 for 98.5 MHz).
- Use the Next/Previous track buttons to navigate between saved stations or fine-tune frequencies.
Figure 4: FM radio interface on the SANSUI F53 display.
5.3 Media Playback (USB/TF Card)
Play videos and music directly from a USB drive or TF (MicroSD) card.
- Insert a USB drive into the USB port or a TF card into the TF card slot.
- The speaker should automatically detect the storage and switch to the appropriate playback mode (Music or Video). If not, navigate to "Music" or "Video" via the menu.
- Use the control buttons (Play/Pause, Next/Previous, Volume) to manage playback.
- The numeric keypad can be used for digital song selection.
Figure 5: Video playback from external storage.
5.4 Menu Navigation
The 4.3-inch LED display provides a user-friendly interface for navigating various functions.
Figure 6: Main menu interface with icons for Music, Video, Bluetooth, Radio, Pictures, Recording, File Management, and Settings.
- Use the navigation buttons (usually arrow keys or dedicated menu navigation) to move between icons.
- Press the Play/Pause button (or a dedicated 'OK' button) to select an option.
- Use the Return button to go back to the previous screen or exit a menu.
6. Maintenance
6.1 Cleaning
- Wipe the speaker with a soft, dry cloth.
- Do not use abrasive cleaners, alcohol, or chemical solvents, as these may damage the surface.
6.2 Storage
- Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- If storing for an extended period, charge the battery to about 50% every few months to prolong its lifespan.
6.3 Battery Care
- Avoid fully discharging the battery frequently.
- Use only the recommended charging voltage (DC 5V/2A).
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Battery is depleted. | Charge the speaker using the provided USB Type-C cable. |
| No sound from radio | Poor signal reception; incorrect frequency; volume too low. | Adjust the speaker's position for better reception. Perform an automatic station scan or manually enter a known strong frequency. Increase the volume. |
| Bluetooth not connecting | Speaker not in Bluetooth mode; device too far; Bluetooth not enabled on source device. | Ensure speaker is in Bluetooth mode. Move source device closer. Enable Bluetooth on your phone/tablet and re-scan. |
| USB/TF card not playing | Incorrect file format; card/drive not inserted correctly; corrupted media. | Ensure media files are in supported formats (MP3, MP4, etc.). Re-insert the USB drive or TF card. Try a different USB drive or TF card. |
8. Specifications
Figure 7: Detailed technical specifications.
| Feature | Specification |
|---|---|
| Product Model | F53 |
| Brand Name | MouZYuan (SANSUI) |
| Power Rating | 8W |
| Bluetooth Version | 5.3 |
| Frequency Range | 100Hz-18KHz |
| Battery Capacity | 3.7V (1800mAh x 2PCS) = 3600mAh |
| Input Power | DC 5V/2A |
| Body Size (L*W*H) | 140mm * 42mm * 85mm |
| Horn Configuration | 1.75 inch internal magnetic horn |
| Display Screen | Yes (4.3-inch LED) |
| Playback Function | Radio, MP3, Video |
| Communication | AUX, USB, Bluetooth |
| Support Memory Card | Yes (TF Card) |
| Waterproof | Yes |
| Weight | 0.6KG |
9. User Tips
- For optimal FM radio reception, try adjusting the speaker's orientation or moving it closer to a window.
- When playing videos or music from a USB drive or TF card, ensure the files are in compatible formats to avoid playback issues.
- The flexible lanyard makes the speaker easy to carry, perfect for outdoor activities.
- Consider this speaker as a thoughtful gift for elderly family members, providing them with easy access to music and radio.
10. Warranty and Support
For warranty information and technical support, please refer to the seller's policies or contact their customer service directly. Keep your purchase receipt as proof of purchase.





