1. Introduction
This manual provides detailed instructions for the RUIZU D50 MP3 Player. Please read this manual thoroughly before using the device to ensure proper operation and to maximize your user experience. The RUIZU D50 is a versatile portable music player designed for various activities, offering a range of features including music playback, Bluetooth connectivity, FM radio, voice recording, e-book reading, video playback, and a pedometer.
2. Product Overview
2.1 Key Features
- Multi-functional: Music playback, Bluetooth 5.0, built-in speaker, FM radio, voice recording, e-book reading (TXT file), video playing (128*160 AMV AVI converted video), photo browsing, screensaver, alarm, pedometer (not supported in Bluetooth mode), 25 languages, fast rewind/forward, shuffle.
- Bluetooth 5.0: Provides faster transmission speed, stable performance, and high anti-jamming capability for connecting to Bluetooth headphones or speakers. Note: This MP3 player is a Bluetooth transmitter, not a receiver, and cannot pair with phones.
- HiFi Lossless Sound Quality: Equipped with a professional intelligent digital noise reduction chip for clear sound. Supports MP3, WMA, APE, FLAC, WAV, DRM, and ACELP formats. Note: Incompatible with iTunes and audiobooks.
- Storage: Built-in 8GB internal memory, expandable up to 128GB via Micro SD card.
- Touch Buttons: High-sensitivity touch buttons for easy navigation.
- Battery Life: Up to 48 hours of playback on a single charge (1-2 hours for full charging).
2.2 What's in the Box
- RUIZU D50 MP3 Player
- Earphones
- USB Cable
- User Manual
Image: Contents of the RUIZU D50 MP3 Player box, showing the MP3 player, earphones, USB cable, and user manual.
3. Device Layout and Controls
Image: Front view of the RUIZU D50 MP3 Player, highlighting the screen and touch-sensitive control buttons.
3.1 Touch Buttons
The RUIZU D50 features high-sensitivity touch buttons for navigation and control. These buttons are responsive and include standard playback controls (play/pause, next/previous track), menu navigation, and a return function.
Image: Illustration of the RUIZU D50's touch buttons, showing options for backlight on/off and always-on.
3.2 Ports and Slots
- Headphone Jack: Standard 3.5mm audio jack for wired earphones.
- USB Port: For charging and data transfer.
- Micro SD Card Slot: For expanding storage up to 128GB.
4. Getting Started
4.1 Charging the Device
Connect the RUIZU D50 to a power source using the provided USB cable. A full charge typically takes 1-2 hours and provides up to 48 hours of music playback. The battery indicator on the screen will show charging status.
Image: The RUIZU D50 MP3 Player showing a full battery, illustrating its long battery life for active use.
4.2 Transferring Files
Connect the MP3 player to your computer using the USB cable. The device will appear as a removable disk. You can then drag and drop music, video, e-book (TXT), and image files directly into the appropriate folders on the player or its Micro SD card.
Image: Instructions on how to download music to the RUIZU D50 by connecting it to a computer.
4.3 Inserting a Micro SD Card
Locate the Micro SD card slot on the side of the device. Gently insert the Micro SD card until it clicks into place. To remove, push the card in slightly until it springs out.
Image: The RUIZU D50 MP3 Player with a Micro SD card inserted, demonstrating its expandable memory feature.
5. Basic Operation
5.1 Power On/Off
Press and hold the power button located on the side of the device to turn it on or off.
5.2 Navigation
Use the touch buttons on the front panel to navigate through menus and select options. The central button typically acts as 'Enter' or 'Confirm', while the surrounding arrows allow movement. The curved arrow button usually functions as 'Back' or 'Return'.
5.3 Language Settings
The device supports 25 languages. To change the language, navigate to the 'Settings' menu, find 'Language', and select your preferred option.
6. Advanced Features
6.1 Bluetooth Connectivity
To connect to Bluetooth headphones or speakers:
- Ensure your Bluetooth headphones/speaker are in pairing mode.
- On the RUIZU D50, navigate to the 'Bluetooth' menu.
- Select 'Search Device' to find available Bluetooth devices.
- Choose your device from the list to pair.
Important: The RUIZU D50 acts as a Bluetooth transmitter and cannot connect to smartphones or other devices as a receiver.
Image: The RUIZU D50 MP3 Player demonstrating Bluetooth 5.0 compatibility with external audio devices like headphones and speakers.
6.2 FM Radio
To use the FM radio function:
- Plug in the earphones, as they act as the antenna.
- Navigate to the 'FM Radio' menu.
- Use the scan function to find available radio stations.
- You can save your favorite stations for quick access.
Image: The RUIZU D50 MP3 Player's FM radio interface, showing various frequencies and a user enjoying radio content.
6.3 Pedometer
The built-in pedometer tracks your steps. To activate and use it, navigate to the 'Pedometer' function from the main menu. Note: The pedometer function is not supported when Bluetooth mode is active.
Image: The RUIZU D50 MP3 Player showing its pedometer feature, tracking distance, velocity, and time during activity.
6.4 Voice Recorder
Access the 'Voice Recorder' function to record audio. Ensure sufficient storage space is available on the device or Micro SD card.
6.5 E-Book Reader
The RUIZU D50 supports TXT format e-books. Transfer your TXT files to the device and access them through the 'E-Book' menu.
6.6 Video Player
The device can play videos in 128*160 AMV AVI converted format. Ensure your video files are converted to this specific format for playback. Access videos through the 'Video' menu.
7. Troubleshooting
7.1 Device Not Turning On
- Ensure the device is fully charged. Connect it to a power source for at least 10-15 minutes.
- Try resetting the device by pressing and holding the power button for an extended period (e.g., 10 seconds).
7.2 Cannot Connect via Bluetooth
- Confirm your headphones/speaker are in pairing mode.
- Ensure the MP3 player is not attempting to pair with a smartphone, as it functions as a transmitter only.
- Move the devices closer to each other to ensure they are within range.
7.3 Files Not Playing
- Music: Verify that the music files are in a supported format (MP3, WMA, APE, FLAC, WAV, DRM, ACELP).
- Video: Ensure video files are converted to 128*160 AMV AVI format.
- E-Book: Confirm e-book files are in TXT format.
- Check if the files are corrupted or incomplete.
7.4 Pedometer Not Working
- Ensure Bluetooth is turned off, as the pedometer does not function in Bluetooth mode.
8. Specifications
| Brand | RUIZU |
| Model Name | D50 |
| Internal Memory | 8 GB |
| Expandable Memory | Up to 128 GB (Micro SD) |
| Connectivity | Bluetooth 5.0, Aux |
| Supported Audio Formats | MP3, WMA, APE, FLAC, WAV, DRM, ACELP |
| Supported Video Formats | 128*160 AMV AVI (converted) |
| Supported E-Book Formats | TXT |
| Screen Size | 1.8 Inches |
| Display Technology | LCD |
| Battery Life | Up to 48 Hours |
| Item Weight | 40 Grams |
| Color | Black |
9. Warranty and Support
9.1 Warranty Information
The RUIZU D50 MP3 Player comes with a 1-year warranty from the date of purchase. Please retain your proof of purchase for warranty claims.
9.2 Contact Support
For technical support or warranty inquiries, please contact:
Origin Marketing Private Limited
121 Raj Ratna Industrial Estate, Liberty Garden, Malad West, Mumbai 400064.
Phone: 022 40224087 / 9870294946
10. Product Demonstration Video
Video: A demonstration of the RUIZU D50 MP3 Player's features and usage.
