1. Introduction
This manual provides detailed instructions for the operation and maintenance of your Luoran Kids MP3 Player, Model M4S. Please read this manual thoroughly before using the device to ensure proper functionality and to understand its features, including parental controls, media playback, and connectivity options.
2. Package Contents
Verify that all items are present in the package:
- Luoran Kids MP3 Player M4S
- USB-C cable
- Wired earphones
- Silicone Case
- Instruction Manual (this document)
3. Device Overview
The Luoran M4S features a 4.0-inch IPS display with full touchscreen functionality, housed within a metal frame and tempered glass back. It is designed for ease of use and durability.

Image: Front and side view of the Luoran M4S MP3 Player, displaying its user interface and physical buttons.
3.1 Physical Features
- Power Button: Located on the side for turning the device on/off and screen lock.
- Volume Buttons: Adjust audio output level.
- USB-C Port: For charging and data transfer.
- 3.5mm Headphone Jack: For connecting wired earphones or headphones.
- MicroSD Card Slot: For expanding storage capacity.

Image: Detailed view of the device's construction, highlighting the metal frame, tempered glass back, and port locations.
4. Setup
4.1 Initial Power On
- Press and hold the Power button until the screen illuminates.
- Follow the on-screen prompts to select your language and region.
4.2 Setting Up Parental Controls
Upon first use, you will be prompted to set a password for Parental Management. This password is crucial for controlling app access and installation. Please remember this password.

Image: Parental Management password entry screen.
4.3 Connecting to Wi-Fi
- Navigate to Settings > Network & Internet > Wi-Fi.
- Toggle Wi-Fi On.
- Select your desired Wi-Fi network from the list.
- Enter the network password if prompted and tap Connect.
4.4 Transferring Files
You can transfer music, videos, and other files to the device using the included USB-C cable. Connect the device to a computer, and it will appear as a removable storage device. Alternatively, files can be transferred via Wi-Fi using compatible applications.
4.5 Installing and Managing Applications
The device comes with pre-installed applications such as Spotify Kids, Spotify, Amazon Music, Audible, and HiBy Music. New application installations require approval through the Parental Controls system.

Image: Application Management interface, allowing parents to enable or disable specific applications.
5. Operating Instructions
5.1 Music Playback
The device supports various music formats, including MP3, WAV, FLAC, APE, OGG, M4A, AAC, WMA, and MP2. Music can be organized and played by title, folder, artist, or album.

Image: Music playback options and supported formats displayed on the device screen.
5.2 Video Playback
The 4.0-inch IPS screen allows for video playback. Supported video formats can be played through the pre-installed video player application.
5.3 Bluetooth Connectivity
The player features Bluetooth for connecting to external audio devices such as earphones, headphones, speakers, and car stereos. It provides fast pairing and stable connections.

Image: The device demonstrating Bluetooth connectivity with wireless earbuds.
5.4 Expandable Storage
The device includes 16GB of internal memory and supports external storage expansion up to 256GB via a microSD card slot. It is compatible with SDXC and SDHC cards.

Image: Illustrates the expandable memory feature with a microSD card being inserted.
5.5 Battery Management
The built-in 1500mAh battery provides approximately 50 hours of music playback on a 2-hour full charge. The device includes a standby power-saving feature to optimize battery life. Charge the device using the provided USB-C cable.
6. Parental Controls Features
The Parental Controls system allows for comprehensive management of the device's usage:
- Application Management: Block or unblock any installed application.
- Application Installation Control: New app installations require parental approval via the set password.
- Auto ON/OFF Time: Set specific times for the device to automatically turn on or off, controlling screen time.

Image: Parental Controls screen, detailing options for managing applications and device usage.

Image: Parental Management settings, showing options for automatic power control and app installation permissions.
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | M4S |
| Product Dimensions | 0.39 x 2.4 x 4.25 inches |
| Item Weight | 4.9 ounces |
| Screen Size | 4 Inches |
| Display Type | IPS |
| Memory Storage Capacity | 16 GB (expandable up to 256GB) |
| Connectivity Technology | Bluetooth, Wi-Fi |
| Special Features | Bluetooth and WiFi, Parental Controls |
| Battery | 1 Lithium Polymer battery (included) |
| Compatible Devices | Earphones, Headphones |
| Media Type | SDHC, SDXC, memory card |
8. Troubleshooting
If you encounter issues with your Luoran M4S MP3 Player, consider the following:
- Device not turning on: Ensure the device is fully charged. Connect it to a power source using the USB-C cable.
- Screen unresponsive: Try restarting the device by holding the power button. If unresponsive, a hard reset may be necessary (refer to support for instructions).
- Applications not working or missing: Verify Wi-Fi connectivity. For missing or upgrading applications, contact the Luoran Team for APK files and installation steps.
- Forgotten Parental Control password: It is critical to remember the password or PIN codes set for parental controls. If forgotten, contact Luoran support for assistance.
- Bluetooth connectivity issues: Ensure Bluetooth is enabled on both the player and the external device. Try unpairing and re-pairing the devices.
9. Support and Warranty
For technical assistance, missing components, or issues with application installation, please contact the Luoran Team. They aim to respond within 12 hours.
For specific warranty information regarding your Luoran M4S MP3 Player, please refer to the product packaging or contact Luoran customer support directly. Keep your purchase receipt as proof of purchase.
Important Reminder: Please write down and remember any passwords or PIN codes you set for the device, especially for Parental Controls, as access may be restricted if forgotten.

