1. Introduction
This manual provides detailed instructions for the operation and maintenance of your new MP3 MP4 Player, model GN-408. Please read this manual carefully before using the device to ensure proper functionality and to maximize your user experience. Keep this manual for future reference.
Figure 1: MP3 MP4 Player GN-408 (White model) with included wired earphones. The device features a central control pad with playback buttons and a volume control.
2. Product Overview
2.1 Key Features
- Ultrathin Design: Lightweight and portable, weighing approximately 30g.
- Multi-functional: Supports music playback, video playback, voice recording, FM radio, e-book reading (TXT), and image viewing (JPG/GIF).
- Bluetooth Connectivity: Connects to wireless headphones or Bluetooth speakers. Note: Bluetooth does not connect to mobile phones, computers, or car radios.
- Expandable Storage: Supports Micro SD memory cards up to 64GB (card not included).
- Long Battery Life: Up to 20 hours standby, 3 hours music playback (with headphones), 3 hours video playback, and 3 hours FM radio.
- Built-in Speaker: For audio playback without headphones.
- Hi-Fi Sound Quality: Equipped with a professional intelligent digital noise reduction chip.
2.2 Package Contents
- 1 x MP3/MP4 Player
- 1 x USB Charging Cable
- 1 x Wired Earphones
- 1 x User Manual
Figure 2: Included items: MP3/MP4 Player, USB charging cable, wired earphones, and user manual.
3. Setup
3.1 Charging the Device
Before first use, fully charge the MP3/MP4 Player. Connect the provided USB cable to the device's USB port and the other end to a USB power adapter (not included) or a computer's USB port.
- Charging time: Approximately 2 hours.
- The battery indicator on the screen will show charging status.
3.2 Inserting a Micro SD Card
The device does not have internal memory. A Micro SD card (up to 64GB, not included) is required for storing music, videos, and other files.
- Locate the Micro SD card slot on the side of the player.
- Gently insert the Micro SD card into the slot until it clicks into place. Ensure the card is inserted in the correct orientation.
- To remove, gently push the card inward until it springs out.
Figure 3: The device features a Micro SD card slot for expandable storage and a standard 3.5mm headphone jack.
4. Operating Instructions
4.1 Basic Navigation
The device features a 1.8-inch TFT screen and physical buttons for navigation.
- Use the directional buttons (left/right/up/down) on the control pad to navigate through menus.
- Press the central button (often marked with a play/pause icon) to select an option or confirm an action.
- The 'M' button typically serves as a menu or back button.
- The 'VOL' button controls the volume.
Figure 4: The main menu displays various functions including Music, Video, Sound Recording, Radio, E-book, Picture, Game, Setup, and File Browser.
4.2 Music Playback
- From the main menu, select "Music".
- Navigate to the desired song or album on your Micro SD card.
- Press the central button to start playback.
- Supported audio formats: MP3, WMA, APE, WAV, FLAC.
4.3 Video Playback
- From the main menu, select "Video".
- Browse for video files on your Micro SD card.
- Press the central button to play.
- Note: Video files may need to be converted to a compatible format (e.g., AMV) for optimal playback.
4.4 Bluetooth Connection
To connect to Bluetooth headphones or speakers:
- Ensure your Bluetooth audio device is in pairing mode.
- On the MP3/MP4 Player, navigate to "Setup" or "Bluetooth" settings.
- Scan for available devices.
- Select your device from the list to pair.
- Important: This device's Bluetooth functionality is for connecting to audio output devices only (headphones, speakers). It cannot connect to smartphones, computers, or car audio systems for file transfer or control.
4.5 FM Radio
To use the FM radio, you must connect wired earphones (P2 jack) as they act as the antenna.
- Plug in the wired earphones.
- From the main menu, select "Radio".
- Use the navigation buttons to scan for stations or manually tune.
5. Maintenance
5.1 Cleaning
- Wipe the device with a soft, dry cloth.
- Do not use liquid cleaners or abrasive materials.
5.2 Storage
- Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid dropping or subjecting the device to strong impacts.
5.3 Battery Care
- Charge the battery regularly, even if not in use, to maintain its lifespan.
- Avoid completely draining the battery frequently.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Low battery. | Charge the device for at least 2 hours. |
| No sound during music playback. | Volume too low; earphones not connected properly; corrupted audio file. | Increase volume; ensure earphones are fully plugged in; try another audio file. |
| Bluetooth not connecting to phone/computer. | Device limitation. | The device's Bluetooth is designed only for connecting to headphones/speakers, not for connection to phones, computers, or car radios. |
| Cannot play video files. | Unsupported video format. | Convert video files to a compatible format (e.g., AMV) using conversion software. |
| FM radio not working. | Earphones not plugged in. | Ensure wired earphones are fully plugged in, as they serve as the antenna. |
7. Specifications
| Feature | Detail |
|---|---|
| Model | GN-408 |
| Screen Size | 1.8 inches TFT |
| Dimensions | 9.0 cm x 4.0 cm x 0.8 cm |
| Weight | 31g (device only), 80g (package weight) |
| Internal Memory | None |
| Expandable Memory | Micro SD up to 64GB (not included) |
| Battery | 450mAh Lithium-ion |
| Charging Time | Approx. 2 hours |
| Playback Time (Music) | Approx. 3 hours (with headphones) |
| Playback Time (Video) | Approx. 3 hours |
| Playback Time (FM Radio) | Approx. 3 hours |
| Standby Time | Approx. 20 hours |
| Audio Formats | MP3, WMA, APE, WAV, FLAC |
| Image Formats | JPG, GIF |
| E-book Format | TXT |
| Interface | USB 2.0 |
| Bluetooth | Yes (for audio output devices only) |
8. Warranty and Support
8.1 Warranty Information
This product comes with a manufacturer's warranty of 3 months from the date of purchase. This warranty covers manufacturing defects. It does not cover damage caused by misuse, accidents, unauthorized repairs, or normal wear and tear.
Please retain your proof of purchase for warranty claims.
8.2 Customer Support
For any questions, technical assistance, or warranty claims, please contact your retailer or the manufacturer's customer service. Refer to the contact information provided at the point of purchase or on the product packaging.
