VAORLO M18 RGB Bluetooth 5.3 Audio Transmitter Receiver Instruction Manual

Introduction

The VAORLO M18 is a versatile RGB Bluetooth 5.3 Audio Transmitter Receiver designed to enhance your audio experience. It combines multiple functionalities including Bluetooth receiving (RX) and transmitting (TX), 6.5mm microphone input for karaoke, USB U-disk playback, and Digital-to-Analog Conversion (DAC). Featuring a professional-grade DSP decoding chip and customizable RGB lighting, the M18 offers high-fidelity sound and broad compatibility with various audio devices.

Package Contents

Please check the box for the following items:

• 1x M18 Multi-function Wireless Bluetooth Audio Adapter
• 1x RCA Audio Cable
• 1x 3.5mm AUX Cable
• 1x Type-C Charging Cable
• 2x Bluetooth Antennas
• 1x Remote control
• 1x User Manual

Note: Fiber Optic and Coaxial cables are not included.

Image: Contents of the VAORLO M18 package, including the adapter, cables, antennas, and remote control.

Product Features

• Premium Build: High-end aviation aluminum shell with aluminum alloy craftsmanship for durability and exquisite appearance.
• Advanced Chipset: Utilizes Bluetooth 5.3 + DSP Dual-Chip decoding for enhanced compatibility and stability.
• 7-in-1 Functionality: Bluetooth Receiving (RX), Bluetooth Transmitting (TX), 6.5mm Microphone Singing, USB U-Disk Playback, DAC Digital To Analog Conversion, Cool RGB Colorful Lights, and IR Remote Control.
• Dynamic RGB Lighting: Features multi-color flashing breathing gradient RGB lights for an upgraded visual experience.
• High-Resolution DAC: Built-in Digital Signal Conversion Chip supports Optical Fiber/Coaxial/VAORLO Interface to 3.5mm AUX/RCA Interface. Digital sampling rates up to 192KHz, 24BIT Signal-To-Noise Ratio.
• DSP Sound Processing: Professional-grade DSP decoding chip with independent Treble and Bass sound effects control for an audiophile-level experience.
• Lossless Audio Support: Supports multiple lossless decoding formats including AAC/SBC for superior sound quality.
• Long Battery Life: Built-in 1200mAh rechargeable lithium battery provides approximately 8 hours of continuous listening, 1.5 hours for full charging, and up to 30 days of standby time.
• Infrared Remote Control: Supports 5-8 meters IR remote control for convenient operation.
• Karaoke Function: 6.5mm microphone interface allows for direct microphone connection for singing.
• Extended Wireless Range: Two external 2.4G Bluetooth antennas provide a transmission distance of up to 30 meters.

Product Overview

Front Panel

Image: Front panel of the M18 showing input indicators (BT, USB, OPT, COA, LINE), MIC input, MODE switch (RX/TX), IR receiver, OFF switch, Main Knob (volume/power), Treble knob, and Bass knob.

Front Panel Controls:

• MIC Input: 6.5mm jack for microphone connection.
• MODE Switch: Toggles between Receive (RX) and Transmit (TX) modes.
• IR: Infrared receiver for remote control.
• OFF: Power off switch.
• Main Knob: Clockwise/counter-clockwise rotation for power on/off and volume up/down. Click for play/pause, double-click for next track. Long press to switch signal source.
• Treble Adjustment Knob: Rotate clockwise/counter-clockwise to adjust treble.
• Bass Adjustment Knob: Rotate clockwise/counter-clockwise to adjust bass.

Rear Panel

Image: Rear panel of the M18 showing various audio input/output ports and power input.

Rear Panel Ports:

• AUX (Analog In/Out): 3.5mm audio jack.
• RCA (Analog In/Out): Red and white RCA jacks.
• Coaxial (Digital In): Coaxial digital audio input.
• Optical (Digital In): Optical digital audio input.
• USB: USB port for U-disk playback.
• DC 5V (Type-C): Power input port.
• Antenna Ports: Two ports for connecting the external Bluetooth antennas.

Setup

1. Connect Antennas: Screw the two provided Bluetooth antennas into the antenna ports on the rear of the M18.
2. Power Connection: Connect the Type-C charging cable to the DC 5V port on the rear of the M18 and plug the other end into a 5V USB power adapter (not included).
3. Power On: Rotate the Main Knob clockwise to power on the device. The RGB lights will illuminate.
4. Select Mode (RX/TX): Use the MODE switch on the front panel to select either Receive (RX) or Transmit (TX) mode based on your usage.
5. Audio Connections:
   • **Receive Mode (RX):** To upgrade active speakers or amplifiers with Bluetooth, connect the M18's AUX or RCA output to your speaker/amplifier's AUX or RCA input.
   • **Transmit Mode (TX):** To add Bluetooth transmission to your TV or PC, connect your TV/PC's audio output (e.g., Optical, Coaxial, AUX, RCA) to the corresponding input on the M18.
6. Microphone Connection: If using for karaoke, plug your 6.5mm microphone into the MIC input on the front panel.

Image: Diagram showing digital input (Optical/Coaxial) to analog output (RCA) connection for DAC functionality.

Image: Example of connecting the M18 in Transmit mode to a PC/TV for wireless audio to a headset.

Operating Instructions

Power On/Off and Volume Control

• Power On/Off: Rotate the Main Knob clockwise to turn on, counter-clockwise to turn off.
• Volume Adjustment: Rotate the Main Knob clockwise to increase volume, counter-clockwise to decrease volume.
• Play/Pause: Short press the Main Knob.
• Next Track: Double-click the Main Knob.
• Switch Signal Source: Long press the Main Knob.

Mode Selection (RX/TX)

Use the physical switch labeled 'MODE' on the front panel to select between:

• RX (Receive) Mode: The M18 acts as a Bluetooth receiver, allowing you to stream audio from your phone, tablet, or other Bluetooth-enabled device to your wired speakers or amplifier. The BT indicator light will be blue.
• TX (Transmit) Mode: The M18 acts as a Bluetooth transmitter, allowing you to send audio from non-Bluetooth devices (like a TV or PC) to Bluetooth headphones or speakers. The BT indicator light will be red.

Bluetooth Pairing

• In RX Mode: Set the M18 to RX mode. On your mobile device, search for 'M18' in the Bluetooth settings and connect. The BT indicator will show a solid blue light when connected.
• In TX Mode: Set the M18 to TX mode. Ensure your Bluetooth headphones or speaker are in pairing mode. The M18 will automatically search and connect. The BT indicator will show a solid red light when connected.

USB U-Disk Playback

Insert a USB flash drive (up to 128GB, FAT12/FAT16/FAT32/exFAT format) into the USB port on the rear panel. The M18 will automatically detect and play audio files (MP3/APE/FLAC/WAV/WMA/ALAC/M4A formats supported).

Microphone Usage (Karaoke)

Plug a 6.5mm microphone into the MIC input. Adjust the main volume, treble, and bass knobs to achieve your desired vocal sound. The M18 supports wired or wireless microphones.

Image: Example of connecting a microphone to the M18 for singing.

Sound Adjustment

• Treble Knob: Adjusts the high-frequency sounds.
• Bass Knob: Adjusts the low-frequency sounds.

RGB Lighting

The RGB lights on the knobs provide visual feedback and aesthetic appeal:

• Volume Knob: Rose color variations with volume changes.
• Treble Knob: Blue color variations with treble changes.
• Bass Knob: Yellow color variations with bass changes.
• Startup Defaults: Multi-color dynamic phantom display.
• RX Receive Mode: Connection successful, blue color is always on.
• TX Transmit Mode: Successful pairing, red color is always on.

Image: Visual guide to RGB light indications for different functions and modes.

Remote Control

The included IR remote control allows for convenient operation from a distance (5-8 meters). Functions include power, volume, track control, input selection, and microphone adjustments.

Image: The VAORLO M18 remote control, showing buttons for power, volume, track, input, and microphone settings.

User Tips

• Optimal Placement: For the best Bluetooth range (up to 30 meters), ensure the external antennas are unobstructed and the device is placed in an open area.
• Cable Quality: Use high-quality audio cables to minimize signal loss and ensure the best sound fidelity.
• Microphone Echo: If experiencing excessive echo with the microphone, try adjusting the echo settings via the remote control or the device's EQ.
• Firmware Updates: Periodically check the manufacturer's website for any available firmware updates to ensure optimal performance and compatibility.
• Charging: Always use a 5V-1A (max) power adapter for charging to prevent damage to the device.

Specifications

Image: Detailed product dimensions and rear panel layout.

Troubleshooting

• No Sound:
  • Ensure the M18 is powered on and the volume is turned up.
  • Check that the correct input/output cables are securely connected.
  • Verify the M18 is in the correct mode (RX/TX) for your setup.
  • Confirm the connected audio source/receiver is also powered on and has its volume adjusted.
• Bluetooth Connection Issues:
  • Make sure the M18 is in the correct RX or TX mode.
  • Ensure the M18 is within the 30-meter wireless range of the paired device.
  • Check that the paired device (phone, headphones, etc.) is in pairing mode or discoverable.
  • Try restarting both the M18 and the Bluetooth device.
• Poor Sound Quality:
  • Check the quality of your audio cables; damaged cables can cause interference.
  • Ensure the audio source is providing a clear signal.
  • Adjust the Treble and Bass knobs on the M18 to fine-tune the sound.
  • If using digital inputs (Optical/Coaxial), ensure the source device's output settings match the M18's supported sample rates.
• Remote Control Not Responding:
  • Ensure there are no obstructions between the remote and the M18's IR receiver.
  • Check the battery in the remote control and replace if necessary.
• Low Battery Indication:
  • The volume knob light will flash red when the battery is low, accompanied by an audible indication. Connect the Type-C charging cable to recharge.

Maintenance

• Cleaning: Use a soft, dry cloth to clean the surface of the device. Do not use liquid cleaners or abrasive materials.
• Storage: Store the M18 in a cool, dry place away from direct sunlight and extreme temperatures.
• Avoid Moisture: Keep the device away from water and high humidity to prevent damage to internal components.
• Handle with Care: The aluminum alloy shell is durable, but avoid dropping or subjecting the device to strong impacts.

Warranty and Support

For any product-related inquiries, technical support, or warranty claims, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.