RUIZU D18 MP3 Player User Manual

1. Introduction

This manual provides detailed instructions for the RUIZU D18 MP3 Player. Please read this manual thoroughly before using the device to ensure proper operation and to maximize your user experience. The RUIZU D18 is a portable digital audio player featuring Bluetooth 5.3 connectivity, a 2.4-inch curved screen, touch buttons, and various multimedia functions.

2. Package Contents

Verify that all items are present in the package:

• 1 x Portable MP3 Player with Bluetooth (RUIZU D18)
• 1 x 3.5mm Stereo Headphones
• 1 x Type-C USB Cable
• 1 x English User Manual

Image: The RUIZU D18 MP3 Player shown with its included wired headphones.

3. Device Overview

The RUIZU D18 MP3 Player features a sleek design with a 2.4-inch curved screen and intuitive touch controls.

3.1 Front Panel

Image: Front view of the RUIZU D18 MP3 Player, highlighting the 2.4-inch curved screen and touch-sensitive control buttons. The screen displays a music interface, and the circular touch area below it includes playback controls.

• 2.4-inch Curved Screen: Displays menus, music information, videos, and e-books.
• Touch Buttons: Navigate menus and control playback. The central button is for play/pause/confirm, and surrounding buttons are for navigation (up, down, left, right), previous/next track, and menu access.

3.2 Side and Bottom Panels

Image: A diagram showing the various ports and controls on the RUIZU D18 MP3 Player, including the speaker, touch screen, Micro SD card slot, 3.5mm AUX port, Type-C USB port, volume buttons, and power button.

• Power Button: Press and hold to turn on/off. Short press to lock/unlock screen.
• Volume Buttons: Adjust audio output level.
• Micro SD Card Slot: Supports external memory expansion up to 128GB.
• 3.5mm AUX Port: For connecting wired headphones or external audio devices.
• Type-C USB Port: For charging and data transfer.
• Built-in Speaker: Allows audio playback without headphones.

4. Initial Setup

4.1 Charging the Device

Before first use, fully charge the MP3 player. Connect the included Type-C 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. The battery indicator on the screen will show charging status.

4.2 Inserting a Micro SD Card

The device has 32GB of internal memory. To expand storage, insert a Micro SD card (up to 128GB, not included) into the Micro SD card slot until it clicks into place. Ensure the card is inserted correctly to avoid damage.

Image: A close-up view of the Micro SD card slot on the RUIZU D18 MP3 Player, illustrating how to insert an external memory card.

4.3 Transferring Files

To transfer music, videos, photos, or e-books to the device:

1. Connect the MP3 player to your computer using the Type-C USB cable.
2. The device will appear as a removable disk on your computer.
3. Drag and drop your desired files into the appropriate folders (e.g., 'Music', 'Video', 'Pictures', 'Ebook') on the device or Micro SD card.
4. Safely eject the device from your computer before disconnecting the USB cable.

5. Operating Instructions

5.1 Power On/Off and Screen Lock

• Power On: Press and hold the Power button for a few seconds.
• Power Off: Press and hold the Power button for a few seconds and confirm 'Power Off' on the screen.
• Screen Lock/Unlock: Short press the Power button.

5.2 Navigating the Interface

Use the touch buttons to navigate through menus. The central button typically acts as 'Enter' or 'Confirm', while the surrounding buttons are for directional movement and selection.

5.3 Music Playback

The RUIZU D18 supports HiFi lossless audio playback.

Image: The RUIZU D18 MP3 Player's screen showing various music playback features, including an equalizer, A-B loop function, playlist management, variable speed playback, album cover display, and lyric synchronization.

1. From the main menu, select 'Music'.
2. Browse by Artist, Album, Genre, or All Songs.
3. Select a song to begin playback.
4. During playback, use the touch buttons to control volume, skip tracks, play/pause, and access playback options (e.g., Equalizer, A-B Repeat, Variable Speed Playback, Lyrics).

5.4 Bluetooth Connectivity

The device features Bluetooth 5.3 for wireless audio output.

Image: The RUIZU D18 MP3 Player displaying its Bluetooth 5.3 capability, with a stable connection indicated to a pair of wireless earbuds. A note clarifies that the player cannot pair with phone or laptop Bluetooth.

1. From the main menu, select 'Bluetooth'.
2. Turn Bluetooth 'On'.
3. The player will search for nearby Bluetooth audio devices (e.g., headphones, speakers).
4. Select your desired device from the list to pair.
5. Note: This MP3 player is designed to connect to Bluetooth audio output devices (headphones, speakers) and cannot be paired with smartphones or laptops for file transfer or control.

5.5 FM Radio

Listen to local FM radio stations.

1. Connect wired headphones to the 3.5mm AUX port; they act as the antenna.
2. From the main menu, select 'FM Radio'.
3. Use the options to auto-scan for stations or manually tune.

5.6 Voice Recorder

Record audio using the built-in microphone.

1. From the main menu, select 'Recorder'.
2. Choose 'Start Voice Recording' to begin.
3. Press the central button to pause/resume, and the menu button to stop and save.

5.7 Video Playback

The device supports video playback. Ensure video files are in compatible formats (e.g., AMV, AVI). If your video files are not playing, they may need to be converted using the provided conversion tool on the device's internal memory when connected to a computer.

1. From the main menu, select 'Video'.
2. Browse and select your video file to play.

5.8 E-Book Reader

Read text files (e.g., TXT format).

1. From the main menu, select 'E-Book'.
2. Select a text file to open and read.

5.9 Pedometer

Track your steps during physical activity.

1. From the main menu, select 'Pedometer'.
2. Activate the pedometer function before starting your activity.

Image: A visual representation of the RUIZU D18 MP3 Player's versatile functions, including FM Radio, Voice Recorder, Pedometer, E-Book reading, Video playback, and Alarm Clock capabilities.

6. Maintenance

• Keep the device dry. Moisture can damage electronic components.
• Avoid extreme temperatures.
• Clean the screen and body with a soft, dry cloth. Do not use harsh chemicals.
• Protect the screen from scratches.
• Avoid dropping or subjecting the device to strong impacts.

7. Troubleshooting

8. Specifications

9. Warranty and Support

For warranty information and technical support, please refer to the documentation included with your purchase or contact RUIZU customer service through their official website or the retailer where the product was purchased. Keep your proof of purchase for warranty claims.