1. Introduction
Thank you for purchasing the PRUNUS J180 Retro FM Radio Portable AM Receiver. This device combines classic aesthetics with modern functionality, offering FM, AM, and SW radio reception, Bluetooth connectivity, and playback from TF cards, USB drives, and AUX input. Its portable design and long-lasting battery make it an ideal companion for various activities. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure you get the most out of your radio.
2. Product Features
- Clear and Powerful Sound: Equipped with a 5-watt speaker for loud and crystal-clear audio.
- Multi-functional Playback: Supports Bluetooth connection, TF card, USB disk, and AUX input.
- Multi-band Radio: Receives FM (87-108MHz), AM (522-1620KHz), and Shortwave (5.9-18.0 MHz) frequencies with a retractable antenna for enhanced reception.
- Elegant & Portable Design: Retro appearance with a compact size (6.7 x 3.1 x 4.3 inches, 1.3 lbs) and a convenient handle for easy carrying.
- Integrated Phone Stand: Designed to hold your smartphone for an optimal viewing experience.
- Long Battery Life: Features an 1800mAh rechargeable battery, providing up to 12.5 hours of continuous playback in FM mode at 1/3 volume.
3. Package Contents
Please check the package for the following items:
- PRUNUS J180 Retro Radio Unit
- USB Charging Cable
- User Manual
4. Controls and Ports Overview
Familiarize yourself with the controls and ports on your PRUNUS J180 radio:
- OFF/ON/VOLUME Knob: Rotate to power on/off the radio and adjust the volume level.
- TUNING Knob: Rotate to search for radio stations in FM, AM, or SW modes.
- Mode Buttons:
- FM: Selects FM radio band.
- AM: Selects AM radio band.
- SW: Selects Shortwave radio band.
- BT: Activates Bluetooth mode for wireless audio streaming.
- TF/USB: Selects playback from TF card or USB drive.
- AUX: Selects auxiliary input mode.
- Playback Control Buttons: (Previous Track, Play/Pause, Next Track) Used for media playback in Bluetooth, TF, USB, and AUX modes.
- TF Card Slot: Insert a TF (MicroSD) card for audio playback.
- USB Port: Insert a USB flash drive for audio playback.
- AUX Input: Connect external audio devices using a 3.5mm AUX cable.
- DC 5V Charging Port: Connect the USB charging cable to power the device or recharge the internal battery.
- Retractable Antenna: Extend for improved radio signal reception.
5. Setup
5.1 Initial Charging
Before first use, it is recommended to fully charge the radio's internal battery.
- Connect the provided USB charging cable to the DC 5V port on the side of the radio.
- Connect the other end of the USB cable to a standard USB power adapter (e.g., phone charger, computer USB port) or a power bank.
- A red indicator light will illuminate near the charging port, indicating that the radio is charging.
- The light will turn off or change color (if applicable, not specified) once charging is complete.
5.2 Antenna Extension
For optimal radio reception, especially for FM and SW bands, fully extend the retractable antenna.
6. Operating Instructions
6.1 Power On/Off and Volume Control
To power on the radio, rotate the OFF/ON/VOLUME knob clockwise. Continue rotating clockwise to increase the volume. To decrease volume, rotate counter-clockwise. To power off, rotate counter-clockwise until it clicks off.
6.2 Radio Mode (FM/AM/SW)
- Power on the radio using the VOLUME knob.
- Press the desired band button (FM, AM, or SW) to select the radio mode.
- Extend the retractable antenna for better reception.
- Rotate the TUNING knob to scan for available radio stations. Adjust the antenna position for clearer sound.
6.3 Bluetooth Mode
- Power on the radio.
- Press the BT button to switch to Bluetooth mode. The radio will emit an audible prompt indicating it's ready for pairing.
- On your smartphone or other Bluetooth-enabled device, search for "J-180" in the Bluetooth settings.
- Select "J-180" to pair. Once connected, you will hear a confirmation sound.
- You can now play audio from your device through the radio. Use the playback control buttons on the radio (Previous, Play/Pause, Next) or your connected device to manage playback.
6.4 TF Card / USB Disk Playback
- Power on the radio.
- Insert a TF (MicroSD) card into the TF card slot or a USB flash drive into the USB port.
- Press the TF/USB button to switch to the appropriate playback mode. The radio should automatically detect and start playing audio files.
- Use the playback control buttons (Previous, Play/Pause, Next) to navigate through your music.
6.5 AUX Input Mode
- Power on the radio.
- Connect one end of a 3.5mm AUX audio cable to the AUX input port on the radio.
- Connect the other end of the AUX cable to the headphone jack or audio output of your external device (e.g., smartphone, MP3 player).
- Press the AUX button to switch to auxiliary input mode.
- Play audio from your external device. The volume can be controlled via the radio's VOLUME knob or your external device.
7. Specifications
| Feature | Specification |
|---|---|
| Brand Name | PRUNUS |
| Model Number | J180 |
| Body Material | Plastic |
| Dimensions (WxHxD) | 6.7 x 3.1 x 4.3 inches (17 x 7.8 x 10.9 cm) |
| Weight | Approx. 1.3 lbs (0.6 kg) |
| Power Supply | Rechargeable Battery Pack (1800mAh) |
| Speaker Output | 5W |
| Radio Type | AM / FM / SW |
| FM Frequency Range | 87-108 MHz |
| AM Frequency Range | 522-1620 KHz |
| SW Frequency Range | 5.9-18.0 MHz |
| Bluetooth | Yes |
| WIFI | No |
| Screen | No |
| Certification | CE |
| Origin | Mainland China |
8. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the radio. Do not use abrasive cleaners or solvents.
- Storage: Store the radio in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Recharge the radio regularly, even if not in use for extended periods.
- Antenna: Handle the retractable antenna gently to prevent bending or breaking. Retract it when not in use to protect it.
9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Battery is discharged | Charge the radio using the provided USB cable. |
| Poor radio reception | Antenna not extended; weak signal area | Fully extend the antenna. Try repositioning the radio or moving to an area with better signal. |
| Bluetooth not connecting | Radio not in pairing mode; device too far; already connected to another device | Ensure radio is in BT mode. Make sure your device's Bluetooth is on and "J-180" is selected. Move device closer to the radio. Disconnect from other Bluetooth devices. |
| No sound from TF/USB/AUX | Incorrect mode selected; media not inserted correctly; volume too low | Ensure the correct mode button is pressed. Reinsert TF card/USB drive. Check AUX cable connection. Increase volume on both radio and external device. |
10. User Tips
- Optimal Radio Reception: For the best radio experience, always extend the antenna fully and try different orientations or locations to find the strongest signal.
- Battery Longevity: While the radio has a long battery life, charging it before long trips or outdoor activities ensures uninterrupted enjoyment.
- Phone Stand Functionality: Utilize the integrated phone stand to comfortably watch videos or view content on your smartphone while listening to music or radio.
- Portability: The compact size and handle make it easy to carry. Take it with you for camping, picnics, or just moving it around the house.
11. Warranty and Support
PRUNUS products are manufactured to high-quality standards. For any questions, technical support, or warranty claims, please contact the seller or manufacturer directly through the platform where you purchased the product. Please retain your proof of purchase for warranty purposes.