PRUNUS J-369

PRUNUS J-369 Solar and Battery Emergency Radio User Manual

Model: J-369 | Brand: PRUNUS

Introduction

The PRUNUS J-369 is a versatile emergency radio designed for various situations, including daily use, outdoor activities, and emergencies. It integrates multiple functions such as AM/FM radio, an LED flashlight, a reading lamp, an SOS alarm, and a power bank for charging external devices. The radio offers multiple power options to ensure functionality in any circumstance.

Safety Instructions

  • Avoid exposing the device to extreme temperatures, direct sunlight, or high humidity.
  • Do not immerse the radio in water. The device is water-resistant, not waterproof.
  • Do not attempt to disassemble or modify the radio. This may void the warranty and cause damage.
  • Keep the device away from strong magnetic fields.
  • Use only specified batteries (3 x AA) if not using the internal rechargeable battery.
  • Dispose of batteries responsibly according to local regulations.

Package Contents

  • PRUNUS J-369 Emergency Radio
  • USB-C Charging Cable
  • User Manual

Product Overview

The PRUNUS J-369 features a compact and robust design. Key components include:

  • Volume Knob: Adjusts audio output.
  • Tuning Knob: Selects radio frequencies.
  • Band Switch: Toggles between AM and FM radio bands.
  • Flashlight: Integrated LED light for illumination.
  • Reading Lamp: Foldable panel with LED lights.
  • SOS Button: Activates emergency alarm and flashing light.
  • USB-C Input: For charging the internal battery.
  • USB-A Output: For charging external devices.
  • Hand Crank: For manual power generation.
  • Solar Panel: For solar charging.
  • Battery Compartment: For 3 x AA batteries (not included).
  • Li-ion/AA Switch: Selects power source.
  • Antenna: Telescopic antenna for radio reception.
  • Headphone Jack: 3.5mm port for private listening.
PRUNUS J-369 Emergency Radio with dimensions

Image: Front view of the PRUNUS J-369 Emergency Radio, highlighting its controls and dimensions (6.1 inches length, 3.7 inches height, 1.65 inches width).

Setup

  1. Initial Charge: Before first use, fully charge the internal 3000 mAh Li-ion battery using the provided USB-C cable. Connect the USB-C cable to the radio's USB-C input port and the other end to a standard USB power adapter (not included). The "CHARGE" indicator light will illuminate during charging and turn off when fully charged.
  2. AA Battery Installation (Optional): If using AA batteries, open the battery compartment and insert 3 AA batteries (not included), ensuring correct polarity. Switch the "Li-ion/AA" selector to "AA" mode.
  3. Power Source Selection: Use the "Li-ion/AA" switch located on the side of the radio to select your desired power source. For internal rechargeable battery use, set to "Li-ion". For AA battery use, set to "AA". PRUNUS J-369 Emergency Radio with Li-ion/AA switch detail

    Image: Side view of the PRUNUS J-369 radio, showing the Li-ion/AA power source selector switch.

Operating Instructions

  1. Radio Function (AM/FM):
    • Extend the telescopic antenna for better reception.
    • Turn the Volume Knob clockwise to power on the radio and adjust the volume.
    • Use the Band Switch to select between AM or FM.
    • Rotate the Tuning Knob to find your desired station. The "TUNING" indicator light will illuminate when a strong signal is received.
    • For private listening, connect 3.5mm headphones to the headphone jack.
    PRUNUS J-369 Emergency Radio being used for FM/AM radio with headphones

    Image: A person fishing while listening to the PRUNUS J-369 radio with headphones, demonstrating its portable use for AM/FM radio.

  2. Flashlight:
    • Press the "LIGHT" button to turn on the front LED flashlight. Press again to turn off.
  3. Reading Lamp:
    • Lift the solar panel to reveal the reading lamp. The lamp will automatically turn on. Fold the solar panel back down to turn off the lamp.
    PRUNUS J-369 Emergency Radio flashlight and reading lamp in use

    Image: Top panel shows the radio's flashlight illuminating a dark area. Bottom panel shows the reading lamp in use, providing light for reading.

  4. SOS Alarm:
    • In an emergency, press and hold the "SOS" button to activate a loud siren and flashing light.
    • Press the "SOS" button again to deactivate the alarm.
    PRUNUS J-369 Emergency Radio with SOS alarm activated

    Image: The PRUNUS J-369 radio displaying its SOS alarm function with sound waves and flashing light, set against a backdrop of a damaged building, indicating emergency use.

  5. Power Bank Function:
    • Ensure the radio is in "Li-ion" mode.
    • Connect your external device (e.g., smartphone) to the radio's USB-A output port using your device's charging cable.
    • The radio's internal 3000 mAh battery will begin charging your device.
    • Note: The AA batteries cannot be used to charge external devices.
    PRUNUS J-369 Emergency Radio charging a smartphone outdoors

    Image: The PRUNUS J-369 radio connected via USB to a smartphone, charging it in an outdoor setting, demonstrating its emergency power bank capability.

Charging Methods

The PRUNUS J-369 offers four distinct charging methods to ensure continuous power.

Four charging methods for PRUNUS J-369 Emergency Radio

Image: A composite image illustrating the four charging methods: solar panel, USB-C port, hand crank, and AA battery compartment.

  1. USB-C Charging:
    • Connect the provided USB-C cable to the radio's USB-C input port and a USB power source. This is the primary method for daily charging.
    PRUNUS J-369 Emergency Radio charging via USB-C

    Image: The PRUNUS J-369 radio being charged via a USB-C cable connected to a wall adapter, illustrating a common daily charging method.

  2. Hand Crank Charging:
    • Extend the hand crank from the back of the radio.
    • Rotate the hand crank clockwise or counter-clockwise at a steady pace to generate power.
    • It is recommended to crank for at least 5 minutes to provide sufficient power for basic operation if the battery is completely depleted.
  3. Solar Panel Charging:
    • Place the radio with the solar panel facing direct sunlight.
    • The "CHARGE" indicator light will illuminate when sufficient sunlight is received and charging begins.
    • Solar charging is ideal for maintaining battery levels or for emergency power in outdoor settings. It is slower than USB-C charging.
    PRUNUS J-369 Emergency Radio charging via solar panel and hand crank

    Image: A split image showing the PRUNUS J-369 radio being charged by its solar panel in daylight and by its hand crank in the dark, demonstrating emergency charging options.

  4. AA Battery Power:
    • Insert 3 AA batteries (not included) into the battery compartment.
    • Switch the "Li-ion/AA" selector to "AA" mode.
    • This method provides an alternative power source when the internal rechargeable battery is depleted and other charging methods are unavailable.

Maintenance

  • Cleaning: Wipe the radio with a soft, damp cloth. Do not use abrasive cleaners or solvents.
  • Storage: Store the radio in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, ensure the internal battery is partially charged (around 50%) and remove AA batteries if installed.
  • Battery Care: Regularly charge the internal battery to prolong its lifespan, even if not frequently used.

Troubleshooting

  • No Power:
    • Check if the "Li-ion/AA" switch is in the correct position for the active power source.
    • Ensure the internal battery is charged or AA batteries are correctly installed and not depleted.
    • Try charging via USB-C or hand crank.
  • Poor Radio Reception:
    • Fully extend the telescopic antenna.
    • Adjust the radio's position or location.
    • Rotate the tuning knob slowly to fine-tune the station.
  • Flashlight/Reading Lamp Not Working:
    • Ensure the radio has sufficient power.
    • Check if the "LIGHT" button is pressed or the solar panel is correctly lifted for the reading lamp.
  • External Device Not Charging (Power Bank):
    • Ensure the radio is in "Li-ion" mode.
    • Verify the radio's internal battery has sufficient charge.
    • Check the connection cable between the radio and the external device.
    • AA batteries cannot charge external devices.
  • Hand Crank is Stiff:
    • Ensure there are no obstructions. Apply gentle, consistent pressure. Do not force it.

Specifications

Feature Detail
Model Number J-369
Dimensions 17.9 x 6 x 10.5 cm (7.05 x 2.36 x 4.13 inches)
Weight 430 g (0.95 lbs)
Power Source 3000 mAh Li-ion rechargeable battery (built-in), Solar Power, Hand Crank, 3 x AA batteries (not included)
Charging Input USB-C
Power Output USB-A (for charging external devices)
Radio Bands AM, FM
Special Features Integrated Flashlight, Reading Lamp, SOS Alarm, Power Bank Function
Material Acrylonitrile Butadiene Styrene (ABS)
Water Resistance Water-resistant

Warranty

The PRUNUS J-369 Emergency Radio comes with a 2-year warranty from the date of purchase. This warranty covers manufacturing defects and material faults under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear. Please retain your proof of purchase for warranty claims.

Customer Support

For any questions, technical assistance, or warranty claims regarding your PRUNUS J-369 Emergency Radio, please contact PRUNUS customer support. Refer to the contact information provided with your purchase or visit the official PRUNUS website for support details.

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