1. Product Overview
The YOTON YM03 is a compact and versatile 64GB MP3 player designed for music enthusiasts, especially those with an active lifestyle. It features Bluetooth 5.0 connectivity for wireless audio, HiFi lossless sound quality, an FM radio, and a voice recorder. Its mini design with a clip makes it ideal for sports and on-the-go use.

Figure 1: The YOTON YM03 MP3 Player, showcasing its compact design, included 64GB SD card, and integrated clip for portability.
This device comes with 64GB of storage, expandable up to 128GB via an SD card, allowing you to store thousands of songs. It supports various audio formats including MP3, WMA, APE, FLAC, WAV, DRM, and ACELP, ensuring a high-quality listening experience.

Figure 2: The YOTON YM03 MP3 Player's mini size and lightweight design (28.5g) with a clip, demonstrating its suitability for various sports activities like running and weightlifting.
2. Initial Setup
2.1 Charging the Device
Before first use, fully charge the MP3 player. Connect the provided USB charging cable to the device's USB port and the other end to a USB power adapter (not included) or a computer's USB port. A full charge typically takes approximately 2.5 hours.

Figure 3: Visual representation of the MP3 player's 370mAh battery capacity, indicating approximately 20 hours of music playback and 2 hours of charging time. Note: Actual playback time may vary, refer to specifications for detailed battery life.
2.2 Inserting the SD Card
The YOTON YM03 comes with a 64GB micro SD card pre-installed or included separately. To insert or replace the SD card, locate the SD card slot on the side of the device. Gently push the card into the slot until it clicks into place. Ensure the card is inserted correctly to avoid damage.

Figure 4: The MP3 player alongside a 64GB micro SD card, illustrating the device's expandable storage capability.
2.3 Powering On/Off
To power on the device, press and hold the power button (usually located on the side) until the screen illuminates. To power off, press and hold the power button again until the device shuts down.
3. Operation
3.1 Basic Controls
The YM03 features intuitive button controls:
- Power Button: Press and hold to turn on/off. Short press to lock/unlock screen.
- Volume Buttons (+/-): Adjust audio volume.
- Menu Button: Access main menu or context-sensitive options.
- Navigation Buttons (Up/Down/Left/Right): Navigate through menus and lists.
- Play/Pause Button: Play or pause current audio/video. Confirm selection.
- Previous/Next Track Buttons: Skip to previous/next track. Long press for fast rewind/forward.
- Back Button: Return to the previous screen or menu.
3.2 Music Playback
From the main menu, select "Music" to browse your audio files. You can navigate by artist, album, genre, or folder. The player supports MP3, WMA, APE, FLAC, WAV, DRM, and ACELP formats. Connect headphones to the 3.5mm audio jack for listening, as the device does not have a built-in speaker.

Figure 5: The MP3 player's screen showing the music playback interface with song title and progress. This device delivers HiFi lossless sound quality.
3.3 Bluetooth Connectivity
The YM03 features Bluetooth 5.0 for wireless audio streaming. To pair with Bluetooth headphones or speakers:
- Go to the main menu and select "Bluetooth".
- Turn on Bluetooth.
- Select "Search Device" to find available Bluetooth devices.
- Choose your device from the list and confirm pairing.
Once paired, audio will be routed wirelessly. Bluetooth mode provides approximately 5-6 hours of playback on a full charge.

Figure 6: The YOTON MP3 player demonstrating its Bluetooth 5.0 capability, connecting seamlessly to wireless earbuds for an untethered audio experience.
3.4 FM Radio
To use the FM radio, ensure wired headphones are connected as they act as the antenna. Select "FM Radio" from the main menu. You can auto-scan for stations or manually tune to a specific frequency.
3.5 Voice Recorder
The built-in voice recorder allows you to capture audio. Select "Recorder" from the main menu, then choose "Start Recording". Recordings are saved to the device's memory.
3.6 Pedometer
For fitness tracking, activate the pedometer function. This feature counts your steps, making it suitable for jogging, walking, and other activities.

Figure 7: The YOTON MP3 player is not just for music; it offers a range of functions including Bluetooth, FM Radio, Pedometer, Voice Recording, File Management, and Stopwatch, making it a versatile companion.
4. Maintenance
4.1 Cleaning
To clean the device, use a soft, dry, lint-free cloth. Do not use abrasive cleaners, alcohol, or solvents, as these can damage the surface and internal components. Avoid getting moisture into any openings.
4.2 Storage
Store the MP3 player in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. If storing for an extended period, ensure the battery is partially charged (around 50%) to prolong its lifespan.
4.3 Battery Care
The device uses a Lithium-ion battery. To maximize battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in constant use.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Low battery; System crash. | Charge the device for at least 30 minutes. Press and hold the power button for 10-15 seconds to force a restart. |
| Cannot connect to Bluetooth device. | Bluetooth not enabled; Device out of range; Pairing mode not active. | Ensure Bluetooth is enabled on both devices. Move devices closer. Put the Bluetooth accessory into pairing mode. Delete previous pairings and try again. |
| No sound from headphones. | Headphones not properly connected; Volume too low; Corrupt audio file. | Ensure headphones are fully plugged in. Increase volume. Try a different audio file. Test with another pair of headphones. |
| SD card not recognized. | Card not inserted correctly; Corrupt card; Incompatible format. | Reinsert the SD card. Try formatting the card on a computer (backup data first). Ensure the card is within the supported capacity (up to 128GB). |
Frequently Asked Questions (FAQs)
- How can I get new accessories?
The MP3 player accessories include earphones, a USB data power cable, and a TF card. If any of these accessories are damaged, they will be replaced with new ones. Please contact customer support.
- How does the YOTON MP3 player sort songs?
Songs can be sorted in three ways: 1) By the first letter of the song title. 2) By the first three digits of the serial number (e.g., 001, 002). 3) By sorting song folders by album or artist name.
6. Technical Specifications
| Feature | Detail |
|---|---|
| Brand | YOTON |
| Model Number | YM03 |
| Color | Black |
| Screen Size | 1.4 Inches |
| Connectivity Technology | Bluetooth 5.0 |
| Internal Storage | 64 GB (with included 64GB micro SD card) |
| Expandable Storage | Supports up to 128GB micro SD card |
| Special Features | Lightweight (28.5g), Clip Design, HiFi Lossless Sound, FM Radio, Voice Recorder, Pedometer |
| Battery Composition | Lithium-ion (370mAh) |
| Music Playback Time | Up to 13 hours (5-6 hours in Bluetooth mode) |
| Charging Time | Approximately 2.5 hours |
| Supported Audio Formats | MP3, WMA, APE, FLAC, WAV, DRM, ACELP |
| Compatible Devices | XP (Home, Pro, with SP1, SP2, SP3), 32bit / Windows 7-10 64bit |
| Included Components | 64GB micro SD card, Earphones, USB charging cable, Quick Guide |
7. Warranty and Support
The YOTON YM03 MP3 player comes with a 12-month warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use.
If you encounter any problems with your MP3 player or its accessories, or if you are not satisfied with your purchase, please contact YOTON customer support promptly for assistance or a replacement. YOTON is committed to providing high-quality service.
For support, please refer to the contact information provided in your product packaging or visit the official YOTON website.





