1. Introduction
The Gueray Y-03 Portable CD Player is a versatile audio device offering multiple playback modes and features. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal use of your device.

Figure 1: Gueray Y-03 Portable CD Player Overview
2. What's in the Box
- CD Player
- Cables (USB-A to Type-C, 3.5mm AUX Cable)
- Remote Control
- User Manual
- Themed Cards (Moon Crater and Sunflower)

Figure 2: Package Contents
3. Product Features
3.1 Multi-Mode Playback
The Gueray Y-03 supports various audio playback modes including CD, Bluetooth (receiving and transmitting), FM radio, USB, and AUX. It is compatible with multiple audio formats such as CD, CD-R, CD-RM, MP3, and WMA, allowing you to enjoy your music effortlessly.

Figure 3: Supported Playback Modes
3.2 Dual Bluetooth 5.3 Connectivity
Equipped with advanced Bluetooth 5.3 technology, the Y-03 functions as both a Bluetooth transmitter and receiver. This allows seamless connection to external Bluetooth devices like smartphones or tablets for streaming, and also to Bluetooth headphones or speakers for private listening or amplified sound.
Video 1: Demonstrates Bluetooth receiving function, connecting the CD player to a smartphone.

Figure 4: Bluetooth Transmitting Function

Figure 5: Bluetooth Receiving Function
3.3 Integrated FM Radio and USB Playback
Enjoy FM radio with a frequency range of 76-108.0 MHz. The device also supports USB playback, allowing you to play MP3, WAV, and WMA files directly from a USB drive. An LCD screen displays current mode and track information.

Figure 6: FM Radio Mode

Figure 7: USB Playback Mode
3.4 Dynamic Mood Lighting
The Y-03 features dynamic mood lighting that can sync with music, creating an immersive audio-visual experience. It offers various light modes including breathing, scrolling, constant, and audio-visual modes.
Video 2: Demonstrates various light modes and sleep timer settings.
3.5 Portable Design with Long Battery Life
With a 4000mAh battery, the CD player offers up to 7 hours of working time on a full charge (charging takes 7-8 hours via Type-C). Its portable design with a handle makes it suitable for both indoor and outdoor use.

Figure 8: Portable Usage Scenarios
4. Setup Guide
4.1 Powering On/Off and Charging
- Locate the ON/OFF switch on the back of the device. Slide it to the 'ON' position to power on.
- To charge, connect the provided USB-A to Type-C cable to the DC 5V port on the back of the player and a compatible 5V/2A power adapter. The red charging indicator light will illuminate during charging.

Figure 9: Controls and Ports
4.2 Inserting a CD
- Gently open the dust cover on the front of the player.
- Place the CD label-side up into the CD tray. Ensure it is seated correctly.
- Close the dust cover.
Video 3: Introduction to CD Player Buttons and Light Modes.
5. Operating Instructions
5.1 Mode Selection
Press the 'M' (MODE) button on the top panel or the remote control to cycle through available modes: CD, Bluetooth, USB, FM, and LINE-IN (AUX).
5.2 CD Playback
- Select CD mode. The player will automatically detect and begin playing the CD.
- Use the Play/Pause button (►▮▮) to start or pause playback.
- Use the Previous Track (◀◀) and Next Track (►►) buttons to skip tracks. Long-press for fast rewind/forward.
- Adjust volume using the '+' and '-' buttons.
5.3 Bluetooth Operation
Bluetooth Receiver Mode (BT/RX)
- Select Bluetooth mode (display shows 'BLUE'). The player will enter pairing mode.
- On your smartphone or other Bluetooth device, search for 'Y-03' and pair.
- Once connected, you can stream audio from your device to the CD player's speakers.
Bluetooth Transmitter Mode (BT/TX)
- Ensure the player is in CD or USB mode.
- Long-press the 'M' (MODE) button for 3+ seconds (or press BT/TX on the remote) to activate Bluetooth transmission. The display will show 'BLUE' and flash.
- Put your Bluetooth headphones or speaker into pairing mode. The CD player will automatically connect.
5.4 FM Radio Operation
- Select FM mode (display shows 'FM').
- Press the Play/Pause button (►▮▮) to auto-scan and save available stations.
- Use the Previous Track (◀◀) and Next Track (►►) buttons to switch between saved stations.
5.5 USB Playback
- Insert a FAT16 or FAT32 formatted USB drive into the USB port.
- The player will automatically switch to USB mode and begin playback.
5.6 AUX (LINE-IN) Mode
- Connect an external audio device (e.g., smartphone, MP3 player) to the AUX port using the 3.5mm audio cable.
- Select LINE-IN mode (display shows 'LINE').
- Ensure the volume on the external device is turned up.
5.7 Ambient Light Control
Press the Ambient Light button (light bulb icon) on the top panel or remote to cycle through 6 dynamic light modes, including music sync, breathing, scrolling, and constant color modes.
Video 4: Demonstrates various light modes and sleep timer settings.
5.8 Sleep Timer
Set a sleep timer from 30 minutes to 3 hours via the remote control. The player will automatically stop playback after the set time, ideal for falling asleep to music.
6. Maintenance
6.1 CD Handling
- Always place CDs label-side up.
- Clean dirty discs gently from the center outwards using a soft, lint-free cloth.
- Do not use cracked or warped discs.
- Avoid touching the laser lens inside the CD tray.
Video 5: CD Handling Essentials and Care Tips.
6.2 General Care
- Keep the device in a cool, dry place away from dust. The built-in dust cover helps protect the CD mechanism.
- Do not block the ventilation slots on the sides of the player to prevent overheating.
- Use only a DC 5V/2A adapter for charging.
- The player features anti-slip bases for stability.

Figure 10: Design Details for Ease of Use and Maintenance
7. Troubleshooting
If you encounter issues with your Gueray Y-03 CD Player, please refer to the following common solutions:
7.1 No Power / Device Not Turning On
- Check Battery Level: Ensure the device is sufficiently charged. Connect to a power source using the provided Type-C cable and a 5V/2A adapter.
- Power Adapter: Verify that the power adapter is functioning correctly and meets the 5V/2A requirement.
7.2 CD Not Playing / Skipping
- CD Condition: Inspect the CD for scratches, dirt, or warping. Clean the disc gently if necessary.
- CD Placement: Ensure the CD is correctly seated in the tray, label-side up.
- Condensation: If the player has been moved from a cold to a warm environment, internal condensation may occur. Let the player sit at room temperature for at least 1 hour before use to allow it to dry.
7.3 Bluetooth Connection Issues
- Mode Selection: Ensure the player is in the correct Bluetooth mode (BT/RX for receiving, BT/TX for transmitting).
- Distance & Obstacles: Keep devices within 10 meters and avoid physical obstructions like walls.
- Re-pair: If unstable, turn Bluetooth off/on on both devices and attempt to re-pair.
- Car Bluetooth: The player may not connect to older car Bluetooth systems; it is designed for newer Bluetooth versions.
7.4 No Sound in AUX (LINE-IN) Mode
- Mode Selection: Confirm the player is set to 'LINE-IN' mode.
- Cable Connection: Ensure the 3.5mm AUX cable is securely connected to both the player and the external device.
- External Device Volume: Increase the volume on your external audio device.
7.5 Remote Control Not Working
- Batteries: Check battery orientation (+/-) and replace old AAA batteries if necessary.
Video 6: Common Questions and Answers for Gueray Y-03.
8. Specifications
| Brand | Gueray |
| Model Name | Y-03 |
| Color | Black |
| Connectivity Technology | Bluetooth 5.3 |
| Special Features | Anti-Skip Protection, Battery Level Indicator, CD-R/RW Compatible, Dustproof, Rechargeable, Dynamic Mood Lighting |
| Number Of Discs | 1 |
| Supported Audio Format | MP3, WAV, WMA |
| Connector Type | 3.5mm Jack, USB, Type-C |
| Specific Uses For Product | Home, Portable |
| Number of Channels | 2 |
| Compatible Devices | Headphone, Smartphone, Speaker, Tablet |
| Item Weight | 800 Grams |
| Battery Capacity | 4000mAh (up to 7 hours playback) |
| FM Radio Frequency | 76-108.0 MHZ |
9. Warranty and Support
The Gueray Y-03 Portable CD Player comes with a 6-month warranty. For any product inquiries, technical support, or warranty claims, please contact Gueray customer service through the retailer where you purchased the product or visit the official Gueray website for contact information.
For additional information and product updates, you may visit the Gueray Store on Amazon.