Introduction
The PRUNUS J-555 Pocket Radio is a compact and versatile AM/FM radio designed for portability and ease of use. It features dual power options, including a built-in rechargeable battery and support for AAA batteries, ensuring continuous operation. Equipped with a clear speaker, headphone jack, telescopic antenna for enhanced reception, and a convenient built-in flashlight, this radio is suitable for various indoor and outdoor activities. Its intuitive controls make it accessible for users of all ages.
Product Features
- Dual Power Options: Supports both built-in 800mAh rechargeable battery (USB-C charging) and 2x AAA batteries (not included) for flexible power.
- Ultra Mini Design: Compact (3.9 x 2.3 x 1.0 inches) and lightweight (3.6 oz) with a lanyard and back clip for easy portability.
- Easy to Use: Features an AM/FM switch, rotary tuning and volume knobs, and a tuning indicator light for simple operation.
- Outstanding Reception: 7.7-inch telescopic antenna and built-in DSP chip ensure stable signal reception across FM (87-108 MHz) and AM (520-1730 KHz) bands.
- Clear Audio: Built-in magnetic speaker provides clear sound. Includes a 3.5mm headphone jack for private listening.
- Built-in Flashlight: Provides convenient illumination in low-light conditions.
What's in the Box
- PRUNUS J-555 Pocket Radio x 1
- USB-C Charging Cable x 1
- Lanyard x 1
- Owner's Manual x 1
- Quick Start Guide x 1
Setup
1. Power Options and Initial Charge
The PRUNUS J-555 radio offers two power sources: an internal rechargeable lithium battery and external AAA batteries. Before first use, it is recommended to fully charge the built-in battery.
- USB-C Charging:
Connect the provided USB-C charging cable to the radio's USB-C port and plug the other end into a compatible USB power adapter (not included) or a computer's USB port. The "CHGR" indicator light will illuminate during charging and turn off when fully charged.
Image: PRUNUS J-555 radio connected to a USB-C charger, illustrating the charging process and the illuminated charging indicator.
Video: Demonstrates the USB-C charging process for the PRUNUS J-555 Pocket Radio, showing the connection and the charging indicator light.
- AAA Battery Installation:
Open the battery compartment cover on the back of the radio. Insert two AAA batteries (not included), ensuring correct polarity (+/-). Close the battery compartment cover securely.
Power Selector Switch: Inside the battery compartment, there is a switch to select the power source. Slide the switch to the "Lithium Battery" position to use the built-in rechargeable battery, or to the "Alkaline Battery" position to use the AAA batteries. If the rechargeable battery runs out while AAA batteries are installed and the switch is set to "Alkaline Battery", the radio will automatically switch to AAA power.
Image: Detailed view of the PRUNUS J-555 radio's battery compartment, highlighting the power selector switch for choosing between the internal rechargeable battery and external AAA batteries.
Video: Illustrates the process of installing AAA batteries and using the power selector switch to choose between rechargeable and alkaline battery power.
Operating Instructions
1. Power On/Off and Band Selection
Locate the "OFF/FM/AM" switch on the side of the radio. Slide it to "FM" for FM radio or "AM" for AM radio. To turn off the radio, slide the switch to "OFF".
2. Tuning to a Station
Extend the telescopic antenna for optimal reception, especially for FM stations. Use the rotary "Tuning Knob" on the side of the radio to scan for stations. The "TUNE" indicator light will illuminate green when a stable frequency is found, indicating good reception.
Image: Front and side view of the PRUNUS J-555 radio, highlighting the tuning knob, telescopic antenna, and the three indicator lights (Charge, Battery, Tune).
Image: The PRUNUS J-555 radio in an outdoor setting, demonstrating its ability to receive FM and AM signals for music, news, and talk shows.
3. Volume Control
Adjust the volume using the rotary "Volume Knob" located on the side of the radio.
4. Headphone Use
For private listening, plug any standard 3.5mm headphones (not included) into the headphone jack on the top of the radio. The internal speaker will automatically mute when headphones are connected.
Image: A person enjoying music through headphones connected to the PRUNUS J-555 radio, illustrating the use of the 3.5mm headphone jack.
5. Flashlight Operation
The radio includes a built-in flashlight. Locate the "Flashlight Switch" on the side of the radio and slide it to turn the flashlight on or off.
Image: The PRUNUS J-555 radio's flashlight feature in use, providing illumination inside a tent during nighttime.
6. Portability Features (Belt Clip & Lanyard)
The PRUNUS J-555 is designed for maximum portability. It comes with a convenient back clip that allows you to attach it to your belt or pocket. A lanyard is also included for hanging the radio or securing it to your wrist.
Image: The PRUNUS J-555 radio's compact size demonstrated by being held in a hand and compared to a smartphone, along with its belt clip and lanyard for easy carrying.
Image: A person wearing the PRUNUS J-555 radio clipped to their belt while walking, showcasing its practical and portable design for on-the-go use.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the radio. Do not use abrasive cleaners or solvents.
- Storage: When not in use for extended periods, store the radio in a cool, dry place. If using AAA batteries, remove them to prevent leakage.
- Battery Care: For the built-in rechargeable battery, avoid fully discharging it frequently to prolong its lifespan. Charge it regularly, even if not in constant use.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power/Radio not turning on | Battery depleted or power selector switch incorrect. | Charge the built-in battery via USB-C. If using AAA batteries, ensure they are new/charged and inserted correctly. Check the power selector switch inside the battery compartment is set to the correct battery type. |
| Poor reception/Static | Antenna not extended, weak signal, or interference. | Fully extend the telescopic antenna. Try repositioning the radio to find a stronger signal. Avoid areas with strong electromagnetic interference. |
| No sound from speaker/headphones | Volume too low, headphones not fully inserted, or faulty headphones. | Increase the volume using the rotary knob. Ensure headphones are fully plugged into the 3.5mm jack. Test with different headphones if possible. |
| Flashlight not working | Flashlight switch off or battery depleted. | Ensure the flashlight switch is in the "ON" position. Charge the radio's built-in battery. |
Specifications
- Model: J-555
- Dimensions: 3.9 x 2.3 x 1.0 inches (approx. 9.9 x 5.8 x 2.5 cm)
- Weight: 3.6 ounces (approx. 100 g)
- FM Frequency Range: 87-108 MHz
- AM Frequency Range: 520-1730 KHz
- Power Source: Built-in 800mAh Lithium Polymer battery (rechargeable via USB-C) or 2x AAA batteries (not included)
- Connectivity: 3.5mm Headphone Jack, USB-C Charging Port
- Special Features: Telescopic Antenna, DSP Chip, Built-in Flashlight, Back Clip, Lanyard
Warranty and Support
PRUNUS is committed to providing high-quality products and customer satisfaction. For any questions, technical support, or warranty inquiries, please contact PRUNUS customer service. Refer to the included Quick Start Guide or visit the official PRUNUS website for contact information.
Note: Product specifications and features are subject to change without prior notice.
