1. Introduction
Thank you for choosing the PRUNUS J-919 Vintage Mini Radio. This portable radio combines a classic retro aesthetic with modern functionality, offering FM radio, Bluetooth speaker capabilities, AUX input, and TF/SD card playback. Its compact design and rechargeable battery make it an ideal companion for both indoor and outdoor listening.
Figure 1: PRUNUS J-919 Vintage Mini Radio in hand.
2. Important Safety Information
- Read all instructions carefully before using the device.
- Keep the device away from water, moisture, and high humidity.
- Do not expose the device to extreme temperatures (hot or cold).
- Avoid dropping or subjecting the device to strong impacts.
- Do not attempt to disassemble or repair the device yourself. Refer all servicing to qualified personnel.
- Use only the specified charging voltage (DC5V) and current (500mA-2A) to prevent damage.
- Keep out of reach of children.
3. Package Contents
Please check the package for the following items:
- PRUNUS J-919 Vintage Mini Radio
- USB Charging Cable
- User Manual (this document)
4. Product Overview
4.1. Features
- Vintage and portable design.
- FM Radio (87.5-108 MHz).
- Bluetooth connectivity (up to 10m range).
- AUX input for external audio devices.
- TF/SD card slot for MP3 playback (supports 0-32GB).
- Built-in 3W magnetic speaker.
- Rechargeable 1100 mAh battery.
- Warm light on the tuning window for night use.
4.2. Controls and Ports
The PRUNUS J-919 features intuitive controls and essential ports:
- Tuning Knob: Used to select FM radio frequencies.
- Volume Knob: Adjusts the audio output level.
- Band Selector Switch: Toggles between FM, Bluetooth (BT), and AUX modes.
- Power Switch: Turns the device On/Off.
- TF/SD Card Slot: Insert a TF/SD card for MP3 playback.
- AUX Input: Connect external audio sources using a 3.5mm audio cable.
- Charging Port: Micro USB port for charging the internal battery.
Figure 2: Product dimensions and weight.
Figure 3: Front view of the radio (Cherry wood finish).
Figure 4: Front view of the radio (Walnut finish).
5. Setup
5.1. Charging the Battery
The radio has a built-in 1100 mAh rechargeable battery. Before first use, or when the battery is low, charge the device:
- Connect the supplied USB charging cable to the charging port on the back of the radio.
- Connect the other end of the USB cable to a DC5V/500mA-2A USB adapter (not included), a computer USB port, a car charger, or a power bank.
- The charging indicator light (if present) will show the charging status. Once fully charged, disconnect the cable.
A full charge provides long-lasting enjoyment and saves money on disposable batteries.
Video 1: Product demonstration showing charging and Bluetooth connection.
6. Operating Instructions
6.1. Power On/Off
To turn the radio on or off, use the dedicated power switch located on the device.
6.2. FM Radio Mode
- Turn on the radio.
- Set the band selector switch to "FM".
- Rotate the tuning knob to scan for available FM stations. The frequency range is 87.5-108 MHz.
- Adjust the volume knob to your desired listening level.
- The tuning window features a warm light, making it easy to tune at night and protecting your eyes.
Figure 5: Radio in a home setting, highlighting FM reception.
6.3. Bluetooth Speaker Mode
The radio can connect wirelessly to your Bluetooth-enabled devices.
- Turn on the radio.
- Set the band selector switch to "BT" (Bluetooth). The radio will enter pairing mode, indicated by a flashing light or audio prompt.
- On your smartphone, tablet, or computer, enable Bluetooth and search for available devices.
- Select "FY-R919" (or similar name) from the list of devices to pair.
- Once paired, you can play audio from your device through the radio. The effective range is up to 10 meters.
Figure 6: Bluetooth pairing with a smartphone.
Figure 7: Wireless Bluetooth connection in use.
6.4. AUX Input Mode
Connect external audio devices like MP3 players or computers using the AUX input.
- Turn on the radio.
- Set the band selector switch to "AUX".
- Connect one end of a 3.5mm audio cable (not included) to the AUX input port on the radio.
- Connect the other end of the audio cable to the headphone jack or audio output of your external device.
- Play audio from your external device. The sound will be routed through the radio's speaker.
6.5. TF/SD Card Playback
Play MP3 audio files directly from a TF/SD card.
- Ensure the radio is powered on.
- Insert a TF/SD card (formatted with MP3 files, up to 32GB) into the TF card slot.
- The radio should automatically switch to TF card playback mode. If not, cycle through the band selector switch until it plays from the card.
- Use the volume knob to adjust the sound.
Figure 8: Universal compatibility options for the radio.
7. Maintenance
- Cleaning: Wipe the radio with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- Storage: Store the radio in a cool, dry place when not in use. Avoid direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge it regularly, even if not in use for extended periods.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Radio does not turn on. | Battery is discharged. | Charge the radio using the USB cable. |
| Poor FM reception. | Weak signal or interference. | Move the radio to a different location, away from electronic devices that may cause interference. Adjust the radio's position. |
| Bluetooth not connecting. | Radio not in pairing mode, or device too far. | Ensure the radio is in "BT" mode. Make sure your device's Bluetooth is on and within 10m. Forget the device on your phone and try pairing again. |
| No sound from TF/SD card. | Card not inserted correctly, or unsupported file format. | Ensure the TF/SD card is fully inserted. Verify that the audio files are in MP3 format. Check if the card is damaged. |
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | J-919 |
| Brand Name | PRUNUS |
| Dimensions (WxHxD) | 10.60 x 6.80 x 5.00 cm (4.17 x 2.67 x 1.96 inches) |
| Weight | 245g (0.54 lb) |
| Body Material | Wood (Cherry wood or Walnut finish) |
| Type | FM Radio |
| FM Frequency Range | 87.5 - 108 MHz |
| Bluetooth | Yes (up to 10m range) |
| WIFI | No |
| Screen | No |
| Power Supply | Rechargeable Battery Pack |
| Battery Capacity | 1100 mAh (non-replaceable) |
| Charging Input | DC5V/500mA-2A (Micro USB) |
| Speaker | 3W magnetic speaker |
| Functions | Built-In Speaker, Built-in Amplifier, AUX, TF/SD Card (MP3) |
| TF Card Support | 0-32GB (MP3 format) |
| Certification | CE |
10. User Tips
- For optimal FM reception, try placing the radio near a window or in an open area.
- When using Bluetooth, ensure there are no major obstructions between the radio and your connected device to maintain a stable connection.
- The warm light on the tuning window is designed for low-light conditions; it's not meant to be a bright indicator.
11. Warranty and Support
PRUNUS products are manufactured to high-quality standards. For any issues or questions regarding your J-919 Vintage Mini Radio, please contact the seller or PRUNUS customer support. Keep your purchase receipt as proof of purchase for warranty claims.
