User Manual for Sauna Room Music Player (USB/Bluetooth Version)

I. Preface

II. Pre-Use Preparation

1. Equipment Inspection

2. Playback Material Preparation (for USB Mode Only)

3. Bluetooth Device Preparation (for Bluetooth Mode Only)

III. Function Operation Guide

1. USB Mode Playback

1. Connect the Device: Insert the prepared USB flash drive slowly into the corresponding USB port of the player, ensuring it is fully inserted without looseness.
2. Switch Mode: Press the "Mode" button on the device panel to switch to USB mode (indicated by "USB" on the display screen or the corresponding indicator light). The device will automatically scan and play the audio files in the USB flash drive.
3. Playback Control: According to the icons on the control panel, operate the corresponding buttons to perform playback/pause, track switching, volume adjustment, and loop mode settings.
4. Exit USB Mode: To stop playback, switch to another mode or remove the USB flash drive (it is recommended to pause playback before removing the USB flash drive to avoid damaging files or the interface).

2. Bluetooth Mode Playback

1. Turn on Bluetooth: Press the "Mode" button on the device panel to switch to Bluetooth mode (indicated by "BT" on the display screen or blinking Bluetooth indicator light).
2. Device Pairing: Turn on Bluetooth on your mobile phone or other Bluetooth devices, search for and connect to the Bluetooth name of the corresponding player to complete pairing.
3. Successful Pairing: After successful pairing, the Bluetooth indicator light will stay on. If pairing fails, restart Bluetooth on both devices or the player and try again.
4. Playback Control: All playback operations and volume adjustment can be performed through the Bluetooth device or the buttons indicated by the icons on the control panel.
5. Disconnect Bluetooth: You can disconnect by turning off the Bluetooth device, canceling pairing, or switching the playback mode. The connection will be automatically disconnected when the Bluetooth device is out of the connection range.

IV. Precautions

1. Safety Protection: The sauna room is humid. It is strictly prohibited to pour water or spray moisture on the device to prevent water stains from entering the interface or the inside of the device, which may cause short circuits or malfunctions. Do not pile debris around the device; keep it ventilated and dry.
2. Power Safety: The device must be connected to a compliant power supply. It is strictly prohibited to wire arbitrarily. Avoid squeezing or stepping on the power cord. Turn off the device power and unplug the power plug after use or when not in use for a long time.
3. USB Device Specifications: Do not use damaged or virus-infected USB flash drives to avoid damaging the device. Do not insert the USB flash drive with excessive force to prevent interface deformation or damage.
4. Bluetooth Usage Limitations: High temperature and humidity in the sauna room may affect Bluetooth signal stability. If stuttering or disconnection occurs, shorten the distance between the Bluetooth device and the player host, or switch to USB mode for playback.
5. Equipment Maintenance: Regularly wipe dust on the device surface and interfaces with a dry soft cloth to avoid dust accumulation affecting use. If the device malfunctions (such as failing to recognize the USB flash drive, Bluetooth pairing failure, or no audio output), do not disassemble or repair it yourself; contact professional personnel for inspection and repair.
6. Volume Control: Human senses are sensitive during sauna. It is recommended to adjust the volume to a moderate level (50%-70%) to avoid hearing damage caused by prolonged high-volume playback.

V. Common Faults and Troubleshooting

• USB mode fails to recognize the USB flash drive: 1. Reconnect the USB flash drive by unplugging and plugging it back in to ensure it is properly inserted; 2. Replace the USB flash drive and try again; 3. Check if the USB port is blocked by debris, clean it, and then retry.
• Bluetooth fails to search for devices: 1. Confirm the device has entered Bluetooth pairing mode (blinking indicator light or "BT" displayed); 2. Turn off and re-enable Bluetooth on the device, or restart the music player; 3. Ensure the distance between the two devices is within 10 meters without obstacles; 4. Clear the paired device list on the Bluetooth device and search again.
• No audio output during playback: 1. Check if the volume is turned to the minimum or if the audio equipment is turned on; 2. Confirm the correct mode is selected (corresponding to USB/Bluetooth mode); 3. Check if the audio equipment is normally connected to the music player; 4. Replace the audio file or Bluetooth device to rule out material issues.
• Bluetooth playback stutters or disconnects: 1. Shorten the distance between the Bluetooth device and the music player host; 2. Avoid interference from other Bluetooth devices by turning off irrelevant ones; 3. Switch to USB mode to rule out signal issues; 4. Restart both devices and re-pair.

VI. Warm Reminder