Introduction
The PRUNUS J-211 is a compact and versatile portable radio designed for both indoor and outdoor use. It features AM, FM, and Shortwave (SW) bands, dual power options (rechargeable USB-C and AA batteries), a built-in LED flashlight, and a 3.5mm earphone jack for private listening. Its user-friendly design with large knobs makes it easy to operate for all ages.
What's in the Box
Please check the package contents upon unboxing:
- 1 x PRUNUS J-211 Radio
- 1 x User Manual
- 1 x USB-C Charging Cable
- 1 x Lanyard
- 1 x Package Box
Product Overview & Controls
Familiarize yourself with the radio's components and controls:
- Tuning Knob: Used to select radio stations.
- Power Volume Knob: Turns the radio on/off and adjusts the volume.
- Indicators: Power and Tune indicators for status.
- Flashlight: Integrated LED light for illumination.
- Back Clip: For attaching the radio to clothing or bags.
- FM/AM/SW Switch: Selects the desired radio band.
- Antenna: Telescopic antenna for improved signal reception.
- USB-C Port: For charging the internal battery.
- AA Battery Compartment: For optional AA battery power.
- Power Selector Switch: To switch between internal rechargeable battery and AA batteries.
- 3.5mm Earphone Jack: For connecting headphones.
Setup
1. Powering the Radio
The J-211 radio offers two power options:
-
Built-in 1200mAh Rechargeable Battery (USB-C):
For everyday use, the radio comes with a built-in rechargeable battery. To charge, connect the supplied USB-C cable to the radio's USB-C port and a compatible USB power adapter (not included). The power indicator will show charging status.
Illustration of the radio's dual power options: USB-C charging for the internal 1200mAh battery and a compartment for 2 AA batteries. -
2 x AA Batteries (Not Included):
For outdoor use or during power outages, you can use 2 AA batteries. Open the battery compartment cover on the back of the radio and insert two AA batteries, ensuring correct polarity (+/-). Make sure the power selector switch is set to 'AA' when using AA batteries.
Close-up of the power selector switch, allowing users to choose between AA battery and built-in Li-ion battery power.
2. Antenna
Extend the telescopic antenna fully for optimal signal reception, especially for FM and SW bands. For AM reception, the radio uses a built-in ferrite bar antenna, so antenna position is less critical.
3. Headphones
To listen privately, plug any standard 3.5mm headphones into the earphone jack on the side of the radio. The built-in speaker will automatically mute.
Operating Instructions
1. Turning On/Off & Volume Adjustment
Rotate the Power Volume Knob clockwise to turn the radio on and increase the volume. Rotate counter-clockwise to decrease volume and turn off the radio.
2. Band Selection
Use the FM/AM/SW switch on the side of the radio to select your desired frequency band: FM, AM, or SW (Shortwave).
3. Tuning to a Station
Once a band is selected, slowly rotate the Tuning Knob to scan for stations. The Tune indicator light will illuminate when a strong signal is received. For SW, the band is split into two parts for easier tuning.
4. Using the Flashlight
The radio features a built-in LED flashlight. To activate it, locate the flashlight switch (refer to the Product Overview diagram) and slide it to the 'ON' position. Slide it back to 'OFF' when not in use.
Maintenance
- Cleaning: Wipe the radio with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- Battery Care: If using AA batteries, remove them if the radio will not be used for an extended period to prevent leakage. Recharge the built-in battery regularly to maintain its lifespan.
- Storage: Store the radio in a cool, dry place away from direct sunlight and extreme temperatures.
Troubleshooting
- No Sound / Poor Reception:
-
- Ensure the radio is turned on and volume is adjusted.
- Extend the telescopic antenna fully for FM/SW bands.
- Try rotating the radio for better AM reception.
- Check the battery level or try switching power sources (USB-C or AA batteries).
- Tune slowly and carefully to find stations.
- Move away from electronic devices that may cause interference.
- Flashlight Not Working:
-
- Ensure the flashlight switch is in the 'ON' position.
- Check the battery level.
Specifications
| Feature | Specification |
|---|---|
| Model Number | J-211 |
| Brand Name | PRUNUS |
| Type | AM / FM, SW Portable Radio |
| FM Frequency | 87-108 MHz |
| AM Frequency | 522-1701 KHz (Note: AM band stepping is typically 9kHz or 10kHz depending on region.) |
| SW Frequency | 3.2-22 MHz |
| Power Supply | Built-in 1200mAh Rechargeable Battery Pack, 2 x AA Batteries (not included) |
| Charging Port | USB-C |
| Functions | Built-In Speaker, Flashlight, Built-in Amplifier |
| Earphone Jack | 3.5mm |
| Antenna Length | 16.5 inches (telescopic) |
| Dimensions (WxHxD) | 12.6 x 7.3 x 3.4 cm (approx. 5 x 2.9 x 1.3 inches) |
| Weight | 5.2 oz |
| Body Material | Plastic |
| Connectivity | No WIFI, No Bluetooth |
| Screen | No |
| Certification | CE |
User Tips
- Optimal Reception: For best FM and SW reception, fully extend the antenna and try adjusting its angle. For AM, rotating the radio itself can often improve signal clarity.
- Battery Management: If you plan to store the radio for a long time, remove the AA batteries to prevent corrosion. For the built-in battery, a full charge before storage and occasional recharging (every 3-6 months) can help maintain its health.
- Emergency Preparedness: Keep a set of fresh AA batteries on hand for emergencies or power outages, ensuring your radio is always ready.
- Quiet Listening: Use headphones for a more immersive and private listening experience, especially in shared spaces or at night.
Warranty & Support
For warranty information, technical support, or service inquiries, please refer to the contact details provided with your purchase or visit the official PRUNUS website. Keep your purchase receipt as proof of purchase.