PRUNUS J-725 Portable Radio User Manual

Introduction

Thank you for choosing the PRUNUS J-725 Portable Radio. This compact and versatile device offers FM radio reception, MP3 playback from USB and TF cards, a built-in alarm clock, and an emergency flashlight. Designed for ease of use and portability, it features a long-lasting rechargeable battery, making it ideal for both indoor and outdoor use. Please read this manual carefully to ensure proper operation and maintenance of your device.

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 out of reach of children.
• Use only the provided charging cable and a compatible USB power source (DC 5V / 500-1000MA).
• Dispose of the battery responsibly according to local regulations.

Product Overview

The PRUNUS J-725 is a compact and lightweight portable radio, designed for convenience and functionality.

Figure 1: Front view of the PRUNUS J-725 Portable Radio, showing the digital display, numeric keypad, and function buttons.

Key Features:

• Compact Design: Measures 135 x 66 x 28 mm and weighs 192g, making it highly portable.
• Long Battery Life: Equipped with a 3000mAh rechargeable battery, providing over 30 hours of listening time at 1/3 volume.
• Excellent FM Reception: Supports FM frequency band (87.5-108 MHz) with automatic station scanning and storage for up to 99 stations.
• Versatile Playback: Functions as an MP3 player, supporting playback from TF cards and USB flash drives.
• Clear Sound Quality: Features a built-in 3W speaker for clear audio. Includes a 3.5mm headphone jack for private listening or external speaker connection.
• Additional Functions: Integrated clock and alarm, and an emergency LED flashlight.

Figure 2: Size comparison of the PRUNUS J-725 Portable Radio with an iPhone 7, highlighting its compact dimensions (135mm x 66mm x 28mm).

Setup

Charging the Battery:

1. Locate the micro USB charging port on the side of the radio.
2. Connect the provided USB charging cable to the radio's charging port.
3. Connect the other end of the USB cable to a compatible USB power source (e.g., USB adapter, computer USB port, car charger, power bank).
4. The charging indicator light will turn red while charging.
5. Once fully charged (approximately 5-6 hours), the indicator light will turn green. This indicates the battery is full and ready for use.

Figure 3: The PRUNUS J-725 radio demonstrating its enduring battery life, capable of up to 30 hours of playback at 30% volume.

Operating Instructions

Power On/Off:

• To turn on the radio, slide the ON/OFF switch to the "ON" position.
• To turn off the radio, slide the ON/OFF switch to the "OFF" position.

FM Radio Operation:

1. Extend the telescopic antenna for better reception.
2. Press the MODE button to switch to FM radio mode. The display will show the FM frequency.
3. Automatic Scan: Press and hold the SCAN button (often labeled with a play/pause icon) to automatically scan and save all available FM stations. The radio can store up to 99 stations.
4. Manual Tuning: Use the numeric keypad to directly enter the desired FM frequency (e.g., 106.2).
5. Navigate Stations: Use the ◀◀ (Previous) and ▶▶ (Next) buttons to cycle through saved stations.

MP3 Playback (USB/TF Card):

1. Insert a USB flash drive or TF (Micro SD) card containing MP3 audio files into the respective slot.
2. The radio will automatically switch to MP3 playback mode. If not, press the MODE button until "MP3" or a similar indicator appears.
3. Use the ◀◀ (Previous) and ▶▶ (Next) buttons to skip tracks.
4. Press the SCAN button (play/pause) to play or pause the current track.
5. The radio supports breakpoint memory function, resuming playback from where it left off.

Figure 4: The PRUNUS J-725 radio's universal compatibility, supporting FM radio, MP3 playback from Micro SD/TF cards and USB flash drives, and AUX input.

Clock and Alarm Functions:

• The radio features a built-in clock and alarm function. Refer to the specific button labels on your device for setting the time and alarm. (Typically involves a "Clock" or "Set" button and using the numeric keypad or navigation buttons to adjust values).
• Once set, the alarm will sound at the designated time.

Figure 5: The PRUNUS J-725 radio displaying the time, illustrating its integrated clock and alarm functions.

Emergency Flashlight:

• Press the LED button to turn on the integrated flashlight.
• Press the LED button again to turn off the flashlight.
• This feature is useful for emergency lighting, workshops, or night activities.

Figure 6: The PRUNUS J-725 radio's emergency flashlight in use, providing high brightness illumination.

AUX Input:

• The radio features a 3.5mm AUX input.
• Connect an external audio device (e.g., smartphone, MP3 player) to the AUX input using a 3.5mm audio cable (not included).
• Press the MODE button to switch to AUX mode. The radio will then play audio from the connected device through its speaker.

Maintenance

• Cleaning: Wipe the radio with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the radio regularly, even if not in use for extended periods.
• Storage: Store the radio in a cool, dry place away from direct sunlight and extreme temperatures.

Troubleshooting

Specifications

Warranty and Support

PRUNUS is committed to providing high-quality products and excellent customer service. For any questions, technical support, or warranty claims, please contact PRUNUS customer support through the platform where you purchased the product or visit the official PRUNUS website for contact information.

Please retain your proof of purchase for warranty purposes.