SHIDU M500UHF Voice Amplifier User Manual

1. Introduction

The SHIDU M500UHF Wireless Voice Amplifier is a portable public address system designed to amplify your voice clearly and effectively. It is suitable for various applications such as teaching, tour guiding, presentations, and outdoor activities. This device features a high-power audio output, clear sound reproduction, and supports multiple media playback options including TF card and USB disk. Its compact and lightweight design ensures portability and ease of use.

2. Package Contents

Please verify that all items listed below are included in your package:

• 1 x SHIDU M500UHF Voice Amplifier
• 1 x Waistband
• 1 x UHF Wireless Microphone Headset
• 1 x USB Charging Cable
• 1 x 3.5mm Audio Cable
• 1 x User Manual

3. Product Features

• Portable Design: Lightweight and compact (104mm*86mm*28mm, 6.85oz) with a back clip for attachment to a belt or pocket, and a waistband for waist hanging.
• Multipurpose Functionality: Functions as a voice amplifier, audio recorder, and powerful speaker. Supports Bluetooth, USB, TF card, and FM radio playback.
• Rechargeable Battery: Built-in 2000mAh lithium battery provides 10-12 hours of amplification or 8 hours of music playback on a 3-5 hour charge.
• Media Playback: Supports TF (Micro SD) card and USB flash drive for music playback with repeat and loop functions.
• UHF Wireless Microphone: Includes a comfortable UHF wireless microphone headset that can also be used as a handheld microphone. Offers up to 150ft transmission distance.

Figure 3.1: The SHIDU M500UHF Voice Amplifier demonstrating its excellent sound quality with clear audio output.

Figure 3.2: The amplifier's powerful 2000mAh rechargeable lithium battery, providing extended usage time.

4. Setup

4.1 Charging the Device

1. Connect the supplied USB charging cable to the voice amplifier's charging port.
2. Connect the other end of the USB cable to a DC5V, 500mA power adapter (not included) or a computer USB port.
3. The charging indicator light will illuminate. The amplifier typically takes 3-5 hours to fully charge.
4. For the wireless microphone, connect its charging port to the USB cable. It takes 2-3 hours to fully charge.

4.2 Pairing the Wireless Microphone

The UHF wireless microphone and amplifier are usually pre-paired. If re-pairing is needed:

1. Turn on both the voice amplifier and the wireless microphone.
2. Press and hold the "Pairing Key" on the microphone (refer to Figure 4.1 for location) until the indicator light flashes rapidly.
3. The amplifier and microphone should automatically connect. A steady light on the microphone indicates successful pairing.

Figure 4.1: Detailed view of the UHF Wireless Microphone Headset, highlighting the power switch, pairing key, and LCD display.

5. Operating Instructions

5.1 Voice Amplification

1. Turn on the voice amplifier and the wireless microphone.
2. Place the microphone headset comfortably on your head, ensuring the microphone is positioned near your mouth.
3. Adjust the volume knob on the amplifier to your desired level. It is recommended to start with a low volume and gradually increase it to avoid feedback.

5.2 Media Playback (USB/TF Card)

1. Insert a USB flash drive or TF (Micro SD) card into the corresponding slot on the amplifier.
2. The amplifier will automatically detect and begin playing audio files.
3. Use the control buttons on the amplifier to play/pause, skip tracks, or adjust volume.

Figure 5.1: The side panel of the amplifier, illustrating the AUX, USB, and TF card input ports, along with the recording key.

5.3 Audio Recording

To record audio, a TF card is required. Insert the TF card and press the recording key (refer to Figure 5.1).

5.4 Using the Waistband and Clip

The amplifier can be worn using the supplied waistband or attached to clothing via its rotary clip. The clip allows for convenient waist, shoulder, or oblique hanging.

Figure 5.2: The rotary clip design on the back of the amplifier, enabling various wearing styles for user convenience.

6. Maintenance

• Clean the amplifier and microphone with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
• Avoid dropping or subjecting the device to strong impacts.
• Do not attempt to disassemble or repair the device yourself. Contact qualified service personnel for assistance.

7. Troubleshooting

8. Specifications

9. Safety Information

• Do not expose the device to water or excessive moisture.
• Avoid placing the device near heat sources or in direct sunlight for prolonged periods.
• Keep the device out of reach of children.
• Use only the provided charging cable and recommended power adapter.
• Do not insert or plug the connector frequently to avoid looseness of the socket or bad connection.
• Before using, please turn down the volume and then adjust the volume according to your need to prevent sudden loud noises.

10. Warranty and Support

For warranty information and technical support, please refer to the contact details provided with your purchase or visit the official SHIDU website. Original accessories are suggested if replacements are needed.