1. Product Overview
The DEGEN DE1125 is a compact and versatile portable device that integrates multiple functionalities into a single unit. It serves as a world-band radio, an MP3 player, a digital recorder, and an ebook reader. Designed for portability, it features a slim profile and lightweight construction, making it ideal for travel and on-the-go use.
Key features include:
- Pocket-size world-band radio with built-in speaker and Digital Signal Processing (DSP) technology.
- 4 GB flash memory MP3 player for music playback.
- Digital recorder for radio programs and voice recording, offering up to 150 hours of recording time (at 32 kbps).
- 255 preset memories for radio stations.
- Built-in battery charger.
- LED back-lit display for clear visibility.
- Digital clock, sleep timer, key lock, and numeric volume indicator.

Figure 1.1: The DEGEN DE1125 portable radio and multimedia player, shown standing upright with its integrated kickstand.
2. Setup Guide
2.1 Unpacking and Initial Inspection
Carefully remove all components from the packaging. Verify that all items listed below are present and undamaged:
- DEGEN DE1125 Unit
- Earphones
- AC Wall Plug (Charger)
- USB Cable
- Carrying Pouch
- Rechargeable Battery
- User Manual (this document)

Figure 2.1: All included accessories for the DEGEN DE1125, including earphones, USB cable, AC adapter, carrying pouch, and rechargeable battery.
2.2 Battery Installation and Charging
The DE1125 is powered by a rechargeable lithium battery. Before first use, ensure the battery is properly installed and fully charged.
- Locate the battery compartment on the back of the device.
- Insert the rechargeable battery, ensuring correct polarity as indicated inside the compartment.
- Close the battery compartment cover securely.
- Connect the small end of the USB cable to the mini-USB port on the side of the DE1125.
- Connect the standard USB end of the cable to the AC wall plug, then plug the AC wall plug into a standard electrical outlet. Alternatively, connect the standard USB end directly to a computer's USB port for charging.
- The display will indicate charging status. Allow the battery to fully charge before initial use.

Figure 2.2: Side view of the DEGEN DE1125, highlighting the mini-USB port for charging and data transfer.
3. Operating Instructions
3.1 General Controls
Familiarize yourself with the buttons and display on the DE1125:

Figure 3.1: Close-up view of the DEGEN DE1125's display and control panel, showing buttons for power, mode selection, tuning, and volume.
- Power Button (): Press and hold to turn the device on or off.
- Volume Buttons (V+, V-): Adjust the audio output level.
- Menu Button: Access the main menu or settings within a mode.
- Navigation Buttons (, ): Navigate through menus or adjust frequencies/tracks.
- Mode Buttons (FM, MW, SW, MP3, REC): Select the desired operating mode.
- Play/Pause Button (): Start or pause playback in MP3 mode, or confirm selections.
3.2 Radio Operation (FM, AM, SW)
The DE1125 supports FM (64.0 - 108.0 MHz), MW (520-1710 KHz), and SW (2.3-23.0 MHz) bands.
- Turn on the device.
- Press the corresponding mode button (FM, MW, or SW) to select the desired radio band.
- Tuning Options:
- Auto-Scan: Press and hold the 'AUTO' button to automatically scan and store available stations.
- Manual Tuning: Use the navigation buttons (, ) to fine-tune the frequency step-by-step.
- Digital Tuning: Enter the desired frequency directly using the numeric keypad (if available, or through menu options).
- ATS (Auto Tuning Storage): Automatically scans and stores strong signals into memory presets.
- Preset Stations: The device can store up to 255 preset stations. Use the 'M+' and 'M-' buttons to navigate through stored presets.
3.3 MP3 Player Function
The DE1125 features 4GB of internal flash memory for MP3 playback.

Figure 3.2: The DEGEN DE1125 display indicating the 'Music' mode, ready for MP3 playback.
- Press the 'MP3' button to enter MP3 player mode.
- To transfer music files from your computer, connect the DE1125 to your computer using the provided USB cable. The device will appear as a removable disk drive. Drag and drop your MP3 files into the device's storage.
- Use the navigation buttons (, ) to select tracks.
- Press the Play/Pause button () to start or pause playback.
3.4 Digital Recorder Function
The DE1125 can record radio programs or function as a voice recorder.

Figure 3.3: The DEGEN DE1125 display showing the 'Record' mode, indicating readiness for audio capture.

Figure 3.4: The DEGEN DE1125 display showing the 'Voice' mode, used for voice recording functions.
- Press the 'REC' button to enter recording mode.
- Select either 'Radio Record' or 'Voice Record' from the menu.
- Press the 'REC' button again to start recording. The display will show recording time.
- Press the 'REC' button again to stop recording. Recorded files are saved to the internal memory.
- To play back recordings, navigate to the 'Recordings' folder in MP3 mode.
3.5 Ebook Reader Function
The DE1125 supports basic ebook reading functionality.

Figure 3.5: The DEGEN DE1125 display showing the 'Ebook' mode, indicating readiness to display text files.
- Connect the DE1125 to your computer via USB.
- Transfer compatible text files (e.g., .TXT) to the device's internal memory.
- Disconnect the device from the computer.
- Navigate to the 'Ebook' mode using the menu or mode selection.
- Select the desired ebook file to open and read.
4. Care and Maintenance
Proper care ensures the longevity and optimal performance of your DEGEN DE1125.
- Cleaning: Use a soft, dry cloth to clean the exterior of the device. Do not use liquid cleaners, aerosols, or abrasive materials.
- Storage: Store the device in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. Use the provided carrying pouch for protection during transport.
- Battery Care: To maintain battery health, avoid fully discharging the battery frequently. If storing for an extended period, charge the battery to about 50% and recharge every few months.
- Water Exposure: This device is not waterproof. Avoid exposure to water or other liquids.
- Impact: Protect the device from drops and impacts, which can damage internal components or the screen.
5. Troubleshooting
If you encounter issues with your DEGEN DE1125, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Battery is depleted or not installed correctly. | Charge the battery. Ensure the battery is inserted with correct polarity. |
| No radio reception or poor signal. | Weak signal area, antenna not extended, interference. | Extend the telescopic antenna fully. Move to an area with better reception. Avoid sources of electronic interference. |
| MP3 files not playing. | Unsupported file format, corrupted file, no files on device. | Ensure files are in MP3 format. Re-transfer files. Verify files exist in the device's memory. |
| Cannot record audio. | Insufficient storage space, incorrect mode. | Delete old files to free up space. Ensure you are in the correct recording mode (Radio Record or Voice Record). |
| Screen is blank or frozen. | System error, low battery. | Press and hold the power button for 10 seconds to force a restart. Charge the battery. |
6. Technical Specifications
| Feature | Specification |
|---|---|
| Brand | Degen |
| Model | DE1125 |
| Product Dimensions | 11 x 1.5 x 6.7 cm |
| Item Weight | 113 g |
| Memory Storage Capacity | 4 GB |
| Hardware Interface | USB |
| Tuner Technology | AM, FM, SW |
| FM Frequency Range | 64.0 - 108.0 MHz |
| MW Frequency Range | 520 - 1710 KHz |
| SW Frequency Range | 2.3 - 23.0 MHz |
| Compatible Devices | Earphone |
| Display Type | LED |
| Screen Size | 0.5 Inches (visible diagonal 1" / 2 cm) |
| Power Source | Battery Powered |
| Battery Type | Lithium Rechargeable |
| Connector Type | USB |
| Compatible Media Type | MP3 |
| Material | Other |
7. Warranty and Support
7.1 Warranty Information
This product is covered by a manufacturer's warranty. Please refer to the warranty policy provided at the time of purchase or contact your retailer for specific details regarding warranty duration and terms. Keep your proof of purchase for warranty claims.
7.2 Customer Support
For technical assistance, troubleshooting beyond this manual, or inquiries about your DEGEN DE1125, please contact the retailer or the manufacturer's customer support. Refer to the contact information provided with your purchase documentation.



