PRUNUS J-288 and J-189 AM/FM Bluetooth Portable Radio Instruction Manual

1. Introduction

This manual provides detailed instructions for the safe and efficient operation of your PRUNUS J-288 and J-189 AM/FM Bluetooth Portable Radios. Please read this manual thoroughly before using the product and retain it for future reference.

Image 1.1: PRUNUS J-288 (bottom) and J-189 (top) Portable Radios.

2. Product Features

2.1. PRUNUS J-288

• 5-in-1 Stereo Radio Speaker: Supports TF card, Bluetooth, AUX input, USB flash drive, and radio modes.
• Dual 3W Magnetic Speakers: Delivers clear bass and immersive stereo sound.
• Bluetooth 4.0 & Hands-Free: Enhanced transmission speed, automatic re-connection to paired devices, and functions as a hands-free telephone receiver. Note: Bluetooth headphones are not supported.
• Sleep Timer: Allows setting a shutdown time in advance for convenience.
• Alarm Clock Functionality: Can be used as an alarm clock.

2.2. PRUNUS J-189

• Perfect Sound Quality: Features a 3W internal magnetic speaker for Hi-Fi sound.
• 3.5mm Headphone Jack: For private listening.
• Excellent Reception: Supports FM (76-108MHz) and AM (522-1710KHz) bands.
• Automatic Channel Search: Simple one-key operation to search for and store available radio stations.
• Emergency Flashlight: Integrated LED flashlight for utility in various situations.

3. Controls and Ports

3.1. PRUNUS J-288 Controls

Image 3.1: PRUNUS J-288 with numeric buttons for direct frequency input and saved station selection.

The J-288 features a clear digital display, volume knob, tuning knob, and dedicated buttons for mode selection (FM, BT, AM, Clock), play/pause, skip tracks, scan, lock, and numeric input for direct frequency tuning or recalling saved stations.

3.2. PRUNUS J-189 Controls

Image 3.2: PRUNUS J-189 with numeric buttons for direct frequency input and saved station selection.

Similar to the J-288, the J-189 includes a digital display, volume and tuning controls, and numeric buttons for ease of use. It also features a dedicated LED flashlight button.

3.3. Common Ports

Both models typically include:

• USB Port: For USB flash drive playback.
• TF Card Slot: For TF/Micro SD card playback.
• AUX Input: For connecting external audio devices.
• 3.5mm Headphone Jack: For private listening.
• Charging Port: For recharging the internal battery (J-288) or powering the device.

4. Setup

4.1. Battery Installation (J-189)

The J-189 model operates on replaceable batteries. Open the battery compartment cover on the back of the unit, insert the required batteries (e.g., AA batteries, refer to the battery compartment for type and polarity), and close the cover securely.

Image 4.1: PRUNUS J-189 showing the battery compartment for replaceable batteries.

4.2. Charging (J-288)

The J-288 model features a built-in rechargeable battery. Connect the provided USB charging cable to the charging port on the radio and to a USB power adapter (not included) or a computer USB port. The charging indicator will illuminate. A full charge typically provides up to 10 hours of operation. The device can also be powered directly via the charging cable.

5. Operating Instructions

5.1. Power On/Off

To power on the radio, long press the power button (usually marked with a power symbol). To power off, long press the same button.

5.2. Mode Selection

Press the MODE button repeatedly to cycle through available modes: FM Radio, AM Radio, Bluetooth, TF Card, USB Flash Drive, and AUX Input.

5.3. Volume Control

Rotate the VOLUME knob (J-288) or use the dedicated volume buttons (J-189) to adjust the sound level.

5.4. Radio Operation (AM/FM)

1. Antenna Adjustment: Extend the telescopic antenna for optimal FM reception. For AM, the internal antenna is usually sufficient, but repositioning the radio may improve reception.


Image 5.1: PRUNUS J-288 with its telescopic antenna extended for improved radio reception.

2. Automatic Channel Search: In FM or AM mode, long press the SCAN button. The radio will automatically search for and store all available stations. Stored channels are typically assigned a program number (e.g., P01, P02).

Video 5.2: This video provides a detailed operation guide for the PRUNUS J-288, including automatic channel search and other functions.
3. Manual Channel Tuning: Use the TUNING knob or the Previous/Next buttons to fine-tune to a specific frequency.
4. Recalling Stored Channels: Use the numeric keypad to directly input the program number (e.g., 1 for P01) or the frequency to access a specific station.

5.5. Bluetooth Operation (J-288)

1. Pairing: Switch the radio to Bluetooth mode. The display will show "BLUE" and the radio will enter pairing mode. On your mobile device, enable Bluetooth and search for "J-288" (or similar). Select it to pair.
2. Playing Audio: Once paired, you can play audio from your device through the radio.
3. Hands-Free Calling: When a call comes in, the radio will report the incoming number. Press the phone button on the radio to answer the call. Press it again to hang up.


Image 5.3: PRUNUS J-288 demonstrating its hands-free calling feature via Bluetooth.

5.6. Media Playback (TF Card/USB/AUX)

1. TF Card/USB Playback: Insert a TF card or USB flash drive (containing MP3 files) into the respective slot. Switch the radio to TF or USB mode. The radio will automatically detect and play the audio files. Use the Previous/Next buttons to navigate tracks.
2. AUX Input: Connect an external audio device (e.g., smartphone, MP3 player) to the AUX input port using a 3.5mm audio cable. Switch the radio to AUX mode. Play audio from your external device.

5.7. Sleep Timer (J-288)

In any mode, press the SLEEP button (often labeled "CLOCK" or with a sleep icon) to set a sleep timer. You can typically choose from preset durations (e.g., 15, 30, 60, 90, 120, 240 minutes). The radio will automatically power off after the selected time.

Image 5.4: PRUNUS J-288 displaying the sleep timer function, allowing automatic shutdown after a set period.

5.8. Alarm Clock (J-288)

The J-288 can function as an alarm clock. Refer to the specific instructions provided with your unit for setting the time and alarm. Typically, this involves pressing and holding the CLOCK or TIME SET button, then using the hour/minute buttons to adjust.

5.9. Emergency Flashlight (J-189)

The J-189 includes an emergency flashlight. Press the dedicated flashlight button (usually marked with an LED icon) to turn it on or off.

Image 5.5: PRUNUS J-189 demonstrating its emergency flashlight feature, useful in low-light conditions.

6. Maintenance

• Cleaning: Use a soft, dry cloth to clean the radio's exterior. Do not use abrasive cleaners or solvents.
• Battery Care (J-288): To prolong battery life, charge the unit regularly. If not used for an extended period, charge it at least once every three months.
• Storage: Store the radio in a cool, dry place away from direct sunlight and extreme temperatures.

7. Troubleshooting

8. Specifications

9. Warranty and Support

PRUNUS offers a LIFETIME hassle-FREE exchange and refund for the radio body, and 60 days for radio accessories. If you have any questions or require assistance, please contact our customer service team. We are dedicated to solving any problems you may encounter.