SHIDU Portable Voice Amplifier SD-M808 User Manual

Introduction

The SHIDU SD-M808 is a versatile 2-in-1 device functioning as both a high-power voice amplifier and a portable Bluetooth speaker. Designed for clarity and durability, it features an 18W output with a 3-inch neodymium iron boron horn, ensuring your voice is projected loudly and clearly up to 262 feet away. Its robust IPX5 waterproof, shockproof, and dustproof design makes it suitable for various indoor and outdoor environments, including teaching, guided tours, and outdoor activities.

Beyond voice amplification, the SD-M808 supports Bluetooth 5.0 for stable wireless connections, TWS (True Wireless Stereo), FM radio, recording, loop playback, AUX input, and media playback from Micro SD cards and USB drives. A built-in 2500mAh, 7.4V lithium battery provides up to 6 hours of playtime, with battery status conveniently displayed on an LED digital screen.

Image: SHIDU Portable Voice Amplifier SD-M808 in black and green, showcasing its rugged design.

Package Contents

Please check the package for the following items:

• SHIDU SD-M808 Voice Amplifier
• Wireless Microphone
• Power Adapter (EU Plug, UK Plug, or US Plug depending on region)
• USB Charging Cable
• Waistband/Strap
• User Manual (this document)

Image: The SHIDU SD-M808 EU Plug version, illustrating the included accessories: power adapter, USB cable, and strap.

Setup Guide

1. Charging the Device

Before first use, fully charge the voice amplifier. Connect the USB charging cable to the 5V-1A charging port on the device and the other end to the provided power adapter or a compatible USB power source. The LED digital display will show the battery status. A full charge typically takes 5-6 hours.

Image: The SHIDU SD-M808 connected via USB, demonstrating its battery charging function for external devices.

2. Connecting the Wireless Microphone

Turn on both the voice amplifier and the wireless microphone. They should automatically pair. If not, refer to the microphone's specific pairing instructions. Ensure the microphone is securely inserted into the MIC jack on the amplifier for wired use, or paired wirelessly for wireless operation.

Image: Detailed view of the SHIDU SD-M808's side panel, highlighting the microphone (MIC), AUX, Micro SD, and USB ports.

3. Inserting Storage Media (Optional)

For playing audio from a Micro SD card or USB drive, insert the respective media into the designated slots. The device supports up to 32GB Micro SD cards.

Image: The SHIDU SD-M808 demonstrating its capability to play media from both U disk (USB drive) and TF card (Micro SD card).

Operating Instructions

1. Power On/Off

Locate the power button on the device. Press and hold to turn the amplifier on or off.

2. Voice Amplification Mode

Once powered on and the microphone is connected/paired, speak into the microphone. Adjust the volume using the volume buttons on the device or the microphone (if applicable).

3. Bluetooth Speaker Mode

1. Turn on the amplifier.
2. Press the 'M' (Mode) button until "Bluetooth" mode is selected (indicated on the LED display).
3. Enable Bluetooth on your mobile device and search for "SHIDU SD-M808" (or similar).
4. Select the device to pair. Once paired, you can play audio from your mobile device through the amplifier.

Image: The SHIDU SD-M808 demonstrating its Bluetooth 5.0 capabilities, connecting wirelessly to a smartphone for audio playback.

4. Media Playback (Micro SD/USB)

Insert a Micro SD card or USB drive with audio files. The device will automatically switch to the corresponding playback mode or you can select it using the 'M' (Mode) button. Use the Previous/Next song buttons to navigate tracks and long-press them to adjust volume.

5. Recording Function

The SD-M808 supports high-definition recording. Follow these steps:

1. Ensure a Micro SD card or USB drive is properly inserted and has sufficient free space.
2. Connect the microphone.
3. Long press the dedicated recording button (often marked with a microphone icon) for 3 seconds to start recording.
4. Press the recording button again to stop.
5. Recordings can be played back from the storage media.

Image: A visual guide to the one-click recording operation, showing insertion of memory card, microphone, and pressing the record button.

6. Controls Overview

The device features intuitive buttons for various functions:

• M (Mode) Button: Switches between different modes (Voice Amplification, Bluetooth, FM, Micro SD, USB, AUX).
• Previous Song / Volume Down: Short press for previous track, long press to decrease volume.
• Next Song / Volume Up: Short press for next track, long press to increase volume.
• Play/Pause Button: Plays or pauses audio playback.
• Recording Button: Initiates and stops recording (long press for 3 seconds to start).

Image: Close-up of the SHIDU SD-M808's control panel and LED display, showing button functions and digital battery status.

Maintenance

1. Cleaning

Wipe the device with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used. Do not use harsh chemicals or abrasive cleaners. Ensure all port covers are closed before cleaning with a damp cloth.

2. Waterproofing (IPX5)

The SD-M808 is IPX5 waterproof, meaning it is protected against low-pressure water jets from any direction. This makes it resistant to splashes and light rain. However, it is not designed for submersion in water. Always ensure the silicone port covers are securely closed to maintain water resistance.

Image: The SHIDU SD-M808 with water splashing, illustrating its IPX5 waterproof rating and rugged design for outdoor use.

3. Storage

Store the device in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, charge the battery to about 50% every few months to prolong its lifespan.

Troubleshooting

• No Sound/Low Volume:
  • Ensure the device is powered on and charged.
  • Check microphone connection/pairing.
  • Increase volume on both the amplifier and the connected audio source (if applicable).
  • Verify the correct mode is selected (e.g., Bluetooth, Micro SD, AUX).
• Bluetooth Connection Issues:
  • Make sure the amplifier is in Bluetooth mode.
  • Disable and re-enable Bluetooth on your mobile device.
  • Move your device closer to the amplifier.
  • Forget the device from your phone's Bluetooth list and try pairing again.
• Recording Not Working:
  • Ensure a Micro SD card or USB drive is properly inserted and has sufficient free space.
  • Verify the microphone is connected.
  • Confirm you are long-pressing the recording button for 3 seconds to initiate recording.
• Battery Not Charging:
  • Check if the charging cable and adapter are securely connected.
  • Ensure the power outlet is functional.
  • Try a different USB charging cable or adapter.

Specifications

Image: Diagram detailing the SHIDU SD-M808's functional parameters, including dimensions, power, battery, and interfaces.

User Tips

• For optimal voice amplification, position the microphone close to your mouth.
• When using in noisy environments, ensure the microphone is directed away from ambient noise sources to minimize feedback.
• Regularly check the battery level on the LED display to avoid interruptions during use.
• Utilize the included waistband/strap for hands-free operation, especially during outdoor activities or presentations.
• To achieve the best sound quality for music playback, ensure your audio files are of good quality and the device is placed on a stable surface.

Warranty and Support

SHIDU products are manufactured to high-quality standards. For any issues or questions regarding your SD-M808 Portable Voice Amplifier, please contact the seller or SHIDU customer support. Keep your purchase receipt as proof of purchase for warranty claims.