Introduction
Thank you for choosing the Jazmm AM/FM Portable Radio. This compact and versatile radio is designed to provide excellent reception and clear audio for your listening pleasure. Featuring a large LCD screen, stereo earphone support, and multiple functions like an alarm clock and sleep timer, it's perfect for personal use at home or on the go. This manual will guide you through the setup, operation, and maintenance of your new radio.
What's Included
- Jazmm AM/FM Portable Radio (Model: 838-red)
- Stereo Earphone
- Owner's Manual (This document)
Note: 2 AAA batteries are required for operation and are not included in the package.
Setup
1. Battery Installation
The radio operates on 2 AAA batteries (not included). For optimal performance and long-lasting use, alkaline batteries are recommended.
- Locate the battery compartment cover on the back of the radio.
- Slide the cover downwards to open it.
- Insert 2 AAA batteries, ensuring the correct polarity (+ and -) as indicated inside the compartment.
- Close the battery compartment cover by sliding it upwards until it clicks into place.

Figure 1: Battery compartment with AAA batteries. The image shows the rear of the red radio with the battery cover removed, revealing the battery slots. Two AAA batteries are depicted alongside, ready for insertion. This illustrates how to correctly insert the batteries.
2. Earphone Connection
For private listening, connect the included stereo earphones to the 3.5mm earphone jack located on the top of the radio.

Figure 2: Radio with earphones connected. The image displays the red portable radio with the included black stereo earphones plugged into the 3.5mm jack on the top, ready for use.
Operating Instructions
1. Power On/Off
To turn the radio on, slide the POWER switch (often combined with SLEEP) located on the side of the radio to the 'ON' position. To turn it off, slide it to the 'OFF' position.
2. Volume Control
Adjust the volume using the VOLUME +/- buttons or slider on the side of the radio. Press V+ to increase volume and V- to decrease volume.

Figure 3: Side controls for volume and power. This image provides a close-up of the right side of the red radio, highlighting the 'VOLUME V+' and 'V-' buttons, and the 'SLEEP' and power switch.
3. Tuning and Band Selection
The radio supports both AM and FM bands. The large LCD screen displays the current frequency.
- Band Selection: Press the BAND button to switch between AM and FM frequencies.
- Manual Tuning: Use the TUNING buttons (left arrow and right arrow) to manually adjust the frequency. Short press for fine-tuning, long press for quick scanning.

Figure 4: Front panel controls and LCD screen. This image shows the front of the red radio, clearly displaying the large LCD screen with a frequency reading (e.g., 92.4 MHz), and the control buttons below it, including MEM./SCAN, TUNING arrows, and BAND.
4. Auto Scan and Preset Stations
The radio can automatically scan and save up to 20 preset stations for quick access.
- Auto Scan: Long press the MEM./SCAN button. The radio will automatically scan for available stations and save them to presets (P01, P02, etc.).
- Accessing Presets: Short press the MEM./SCAN button to cycle through saved preset stations.

Figure 5: Auto Scan and Preset Stations. This image visually represents the radio's ability to auto-scan and store up to 20 preset stations, with various preset numbers (P01-P20) floating around the radio.
5. Alarm Clock Function
The radio includes a digital alarm clock with a snooze function.
- Setting Alarm: Refer to the detailed instructions in the full owner's manual for specific steps on setting the alarm time.
- Snooze: When the alarm sounds, press any button (except power off) to activate the 5-minute snooze function.

Figure 6: Alarm Clock and Snooze Function. This image depicts the radio on a nightstand with an alarm clock graphic, and a person's hand reaching out to interact with the radio, illustrating the alarm and snooze features.
6. Sleep Timer Function
The sleep timer allows the radio to automatically turn off after a set period, conserving battery life.
- Setting Sleep Timer: Press the SLEEP button (often combined with the power switch) repeatedly to cycle through available sleep timer durations (e.g., 15, 30, 45, 60, 90 minutes). The selected time will be displayed on the LCD screen.

Figure 7: Sleep Timer Function. This image shows the radio next to a sleeping person, with musical notes indicating sound, illustrating the automatic shut-off feature to save power.
7. Lock Key
The lock key feature prevents accidental button presses, useful when carrying the radio in a pocket or bag.
- Activating Lock: Locate the LOCK switch (or button combination) on the radio and activate it. The LCD screen may display a lock icon.
- Deactivating Lock: Repeat the action to unlock the radio.
Maintenance
- Keep the radio dry. Avoid exposure to water or high humidity.
- Clean the radio with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- If the radio will not be used for an extended period, remove the batteries to prevent leakage.
- Avoid dropping the radio or subjecting it to strong impacts.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Radio does not turn on. | Batteries are dead or incorrectly inserted. | Replace batteries with new ones, ensuring correct polarity. |
| Poor reception or static. | Weak signal area; antenna not extended; interference. | Extend the telescopic antenna fully. Try moving to a different location. Avoid strong electromagnetic fields. |
| No sound from speaker/earphones. | Volume too low; earphones not fully plugged in; speaker damaged. | Increase volume. Ensure earphones are securely connected. If using earphones, disconnect them to check speaker. |
| Buttons are unresponsive. | Lock key is activated. | Deactivate the lock key function. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | 838-red |
| Dimensions (L x W x H) | 2.2 x 0.6 x 4.3 inches (5.59 x 1.52 x 10.92 cm) |
| Weight | 2.24 ounces (63.5 grams) |
| Power Source | 2 x AAA Batteries (not included) |
| Radio Bands Supported | AM/FM |
| Tuner Technology | Digital AM/FM |
| Special Features | Built-In AM Antenna, Built-In Clock, Lightweight, Portable, Large LCD Screen, Stereo Earphone Output, Sleep Timer, Alarm Clock, 20 Preset Stations |
| Connectivity | Auxiliary (3.5mm earphone jack) |
Warranty and Support
Jazmm provides a customer satisfaction guarantee for this product. If you encounter any issues or have questions regarding your AM/FM Portable Radio, please contact our customer service team. We are committed to providing world-class customer service.
For support, please refer to the contact information provided with your purchase or visit the official Jazmm brand store on Amazon: Jazmm Store.





