PRUNUS J-170 Retro Vintage Radio

1. Introduction

Thank you for choosing the PRUNUS J-170 Retro Vintage Radio. This versatile device combines classic aesthetics with modern functionality, offering AM/FM/SW radio reception, Bluetooth 5.0 connectivity, TF card and USB drive playback, and TWS (True Wireless Stereo) pairing. Its portable design and rechargeable battery make it an ideal companion for various settings, from home entertainment to outdoor activities. Please read this manual carefully to ensure proper use and maintenance of your radio.

Figure 1: PRUNUS J-170 Retro Vintage Radio, showcasing its classic design and front panel controls.

2. Important Safety Information

To ensure safe operation and prevent damage, please observe the following precautions:

• Do not expose the device to rain, moisture, or extreme temperatures.
• Avoid placing the radio near heat sources such as radiators, stoves, or other heat-producing appliances.
• Do not disassemble or attempt to repair the unit yourself. Refer all servicing to qualified personnel.
• Use only the specified charging cable and power adapter (DC 5V) to charge the battery.
• Keep the device away from strong magnetic fields.
• Clean the radio with a soft, dry cloth. Do not use liquid cleaners or aerosol sprays.

3. What's Included

Upon opening the package, please verify that all items are present:

• 1 x PRUNUS J-170 Radio
• 1 x USB-C Charging Cable
• 1 x Owner's Manual

Figure 2: Package contents of the PRUNUS J-170 radio.

4. Product Overview: Controls and Ports

Familiarize yourself with the main components of your PRUNUS J-170 radio:

• Volume Knob: Controls power ON/OFF and adjusts audio volume.
• Tuning Knob: Used to select radio frequencies for AM, FM, and SW bands.
• Band Switch: Toggles between AM, FM, and SW radio bands, and MP3/Bluetooth mode.
• Playback Controls: Buttons for Play/Pause, Next Track, Previous Track (for TF card/USB mode).
• USB Port: For connecting USB flash drives for MP3 playback.
• TF Card Slot: For inserting TF (MicroSD) cards for MP3 playback.
• LED Indicator: Indicates charging status and operating mode.
• DC 5V Charging Port: USB-C input for charging the internal battery.
• Retractable Antenna: Extends for improved radio signal reception.

Figure 3: Detailed view of the radio's control panel.

5. Initial Setup

5.1 Charging the Battery

The PRUNUS J-170 is equipped with an 1800mAh rechargeable battery. Before first use, it is recommended to fully charge the radio.

1. Connect the provided USB-C charging cable to the DC 5V port on the radio.
2. Connect the other end of the USB cable to a standard USB power adapter (DC 5V, not included) or a computer USB port.
3. The LED indicator will illuminate during charging. It will turn off or change color when charging is complete. Avoid overcharging for extended periods.

Figure 4: Charging the PRUNUS J-170 radio.

5.2 Antenna Extension

For optimal radio reception, extend the telescopic antenna fully when listening to FM or SW bands. For AM reception, the internal antenna is typically sufficient, but adjusting the radio's orientation may improve signal quality.

6. Operating Instructions

6.1 Radio Operation (AM/FM/SW)

1. Turn the Volume knob clockwise to power on the radio.
2. Use the Band Switch to select your desired radio band: FM, AM, or SW.
3. Extend the telescopic antenna for better reception, especially for FM and SW.
4. Rotate the Tuning knob to scan for available radio stations.
5. Adjust the Volume knob to your preferred listening level.

Figure 5: Achieving excellent radio reception.

6.2 Bluetooth Connection

The PRUNUS J-170 supports Bluetooth 5.0 for wireless audio streaming.

1. Turn on the radio and switch the Band Switch to the 'MP3/BT' position. The radio will enter Bluetooth pairing mode, indicated by a prompt sound.
2. On your mobile device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
3. Select 'PRUNUS J-170' from the list of devices. Once connected, you will hear a confirmation sound.
4. You can now play audio from your device through the radio. Use the playback controls on the radio or your device to manage music.

6.2.1 True Wireless Stereo (TWS) Pairing

For an immersive stereo experience, you can pair two PRUNUS J-170 radios together.

1. Ensure both PRUNUS J-170 radios are powered on and in Bluetooth pairing mode ('MP3/BT' position).
2. On one of the radios, press and hold the 'Play/Pause' button for a few seconds until you hear a TWS pairing prompt.
3. The two radios will automatically connect to each other. Once paired, one unit will act as the left channel and the other as the right channel.
4. Now, connect your mobile device to one of the paired radios via Bluetooth as described in section 6.2. Audio will play in stereo through both units.

Figure 6: TWS pairing for enhanced stereo sound.

6.3 TF Card / USB Drive Playback

The radio supports playing MP3 audio files from TF cards and USB flash drives.

1. Insert a TF card into the TF card slot or a USB drive into the USB port.
2. Switch the Band Switch to the 'MP3/BT' position. The radio will automatically detect and begin playing audio files from the inserted storage device.
3. Use the playback control buttons (Previous/Next/Play/Pause) to navigate your music.

7. Maintenance

7.1 Cleaning

To keep your radio in good condition, wipe the exterior with a soft, dry cloth. Do not use abrasive cleaners, waxes, or solvents, as they may damage the finish.

7.2 Battery Care

The built-in rechargeable battery is designed for long life. To maximize battery lifespan:

• Avoid fully discharging the battery frequently.
• Do not leave the radio connected to power for extended periods after it is fully charged.
• If storing the radio for a long time, charge it to about 50% every few months to prevent deep discharge.

8. Troubleshooting

If you encounter issues with your PRUNUS J-170 radio, please refer to the following common problems and solutions:

9. Specifications

10. Warranty and Support

PRUNUS products are manufactured with high-quality materials and craftsmanship. For specific warranty details, please refer to the warranty card included with your product or contact the seller directly. If you experience any issues or have questions regarding your PRUNUS J-170 radio, please reach out to PRUNUS customer support for assistance. Contact information can typically be found on the product packaging or the official PRUNUS website.