1. Introduction
Thank you for purchasing the R-2055BT Retro Desktop Wireless Bluetooth Speaker Portable Radio. This device combines classic aesthetics with modern functionality, offering FM/AM/SW radio reception, Bluetooth connectivity, and MP3 playback via USB and TF card. Its portable design and dual power options make it suitable for various environments. Please read this manual carefully to ensure proper use and maintenance of your device.
2. Safety Information
- Do not expose the device to rain, moisture, or extreme temperatures.
- Avoid dropping or subjecting the device to strong impacts.
- Do not disassemble or attempt to repair the device yourself. Refer all servicing to qualified personnel.
- Keep the device away from heat sources and direct sunlight.
- Ensure proper ventilation when operating the device.
- Use only the specified power adapter and charging cable.
3. Package Contents
- R-2055BT Retro Radio Unit
- AC Power Cable
- User Manual (this document)
4. Product Overview
The R-2055BT features a classic wooden cabinet design with intuitive controls for ease of use.
Front Panel Controls and Features:

Figure 1: Front View with Dimensions (212mm x 135mm x 195mm)
- VOLUME Knob: Rotate to adjust the sound level.
- TUNING Knob: Rotate to tune into radio stations.
- MODE Switch: Toggle between MP3/BT (Bluetooth), FM, AM, and SW radio modes.
- USB Port: Insert a USB flash drive for MP3 playback.
- TF Card Slot: Insert a TF (MicroSD) card for MP3 playback.
- Playback Control Buttons: Play/Pause, Next Track, Previous Track.
Rear Panel Features:

Figure 2: Rear View with Power Inputs and Battery Compartment
- Telescopic Antenna: Extend for improved radio reception.
- AC Power Input: Connect the AC power cable for direct power or charging.
- DC 5V IN Charging Jack: For external DC 5V power input.
- DC 5V OUT Jack: For powering external devices (e.g., charging a phone).
- Battery Compartment: Houses the built-in 18650 Li-ion rechargeable battery.
5. Setup
Powering the Device:
The R-2055BT can be powered in two ways:
- AC Power: Connect the provided AC power cable to the AC input on the rear panel and plug it into a wall outlet.
- Rechargeable Battery: The radio has a built-in 18650 1200mAh Li-ion battery. Ensure it is charged before portable use. You can charge it via the micro charging jack or by connecting the AC power cable.

Figure 3: Two Ways to Supply Power (AC Plug-in and Rechargeable Battery)
6. Operating Instructions
6.1 Radio Operation (FM/AM/SW)
- Extend the telescopic antenna for optimal reception.
- Slide the MODE switch to select FM, AM, or SW band.
- Rotate the TUNING knob to scan for radio stations. The frequency scale on the front panel will indicate the current band and frequency.
- Adjust the VOLUME knob to your desired listening level.

Figure 4: Receiving AM/FM/SW with Strong Reception
6.2 USB/TF Card Playback
- Insert a USB flash drive into the USB port or a TF card into the TF card slot.
- Slide the MODE switch to the MP3/BT position. The device will automatically detect and begin playing MP3 files from the inserted storage.
- Use the Play/Pause, Next Track, and Previous Track buttons to control playback.
- Adjust the VOLUME knob as needed.
6.3 Bluetooth Operation
- Slide the MODE switch to the MP3/BT position. The device will enter Bluetooth pairing mode, indicated by an audible prompt.
- On your mobile device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "R-2055BT" from the list of devices to pair. Once paired, you will hear a confirmation sound.
- You can now play audio from your connected device through the R-2055BT. Use the playback control buttons on the radio or your mobile device.
- Adjust the VOLUME knob on the radio and/or your mobile device.

Figure 5: Fast Bluetooth Connection
Video Demonstration:
Video 1: R-2055BT Demo showcasing FM radio, USB, TF, and Bluetooth playback.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the radio. Do not use liquid cleaners or abrasive materials.
- Storage: When not in use for extended periods, store the radio in a cool, dry place.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the battery regularly, even if the radio is not in active use.
- Antenna: Handle the telescopic antenna gently to prevent damage. Retract it when not in use.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Battery is depleted; AC cable not connected properly. | Charge the battery or connect to AC power. Ensure connections are secure. |
| Poor radio reception | Antenna not extended; weak signal area; interference. | Fully extend the antenna. Try repositioning the radio. Avoid sources of electronic interference. |
| Bluetooth not connecting | Radio not in Bluetooth mode; device not discoverable; already connected to another device. | Ensure MODE switch is on MP3/BT. Make sure Bluetooth is enabled on your device and it's searching. Disconnect from other Bluetooth devices. |
| USB/TF card not playing | Incorrect file format; card/drive not inserted correctly; corrupted files. | Ensure files are MP3 format. Reinsert the USB drive/TF card. Try a different USB drive/TF card. |
| No sound | Volume too low; mute activated (if applicable); incorrect mode. | Increase volume. Check mode selection. |
9. Specifications
| Feature | Specification |
|---|---|
| Model Number | R-2055BT |
| Brand Name | SwYiSm |
| Speaker Type | Portable |
| Communication | Bluetooth, USB, TF Card |
| Bluetooth Version | 5.0 |
| Max Wireless Range | <10m |
| Audio Crossover | Full-Range |
| Number of Loudspeaker Enclosure | 1 |
| Input Power | 200-299W |
| Output Power | 3W |
| Power Source | AC, Battery |
| Battery Capacity | 18650 1200mAh Li-ion (Built-in) |
| Input/Output | TF |
| Support Memory Card | Yes (TF) |
| Playback Function | Radio, MP3 |
| Control | Volume control, Playback |
| Waterproof | No |
| Voice Control | No |
| Support APP | Yes |
| Material | Wood |
| Cabinet Material | Wood |
| Origin | Mainland China |
| Certification | CE |
| Product Dimensions (L*W*H) | 21.2 * 13.5 * 19.5 cm |
| FM Frequency Range | 88-108 MHz |
| AM Frequency Range | 530-1600 KHz |
| SW Frequency Range | 5.6-22 MHz |
| Charging Port | Micro USB |
| DC Output | DC 5V OUT |
10. User Tips
- For best radio reception, always extend the antenna fully and try different orientations.
- When using USB or TF card playback, ensure your audio files are in MP3 format for compatibility.
- To conserve battery life, turn off the radio when not in use and disconnect any external devices from the DC 5V OUT port.
- The radio's portability makes it ideal for various settings, from indoor use to outdoor activities like picnics or gardening.

Figure 6: Accompany You Anywhere
11. Warranty and Support
This product comes with a standard manufacturer's warranty. For warranty claims, technical support, or any questions regarding the operation of your R-2055BT radio, please contact the seller or manufacturer directly. Please retain your proof of purchase for warranty purposes.