VAORLO BT100 Bluetooth 5.4 Audio Receiver Transmitter User Manual

1. Introduction

The VAORLO BT100 is a versatile 2-in-1 Bluetooth 5.4 audio receiver and transmitter designed to enhance your audio experience. This device allows you to wirelessly transmit audio from your mobile phone or computer to traditional amplified audio equipment (Receiver Mode) or transmit audio from non-Bluetooth devices like TVs, game consoles, or CD players to Bluetooth headphones or speakers (Transmitter Mode). It features a built-in 1000mAh rechargeable lithium battery, offering approximately 40 hours of listening time, and supports USB U-Disk playback. With its plug-and-play functionality, no software drivers are required, ensuring simple and fast operation.

The VAORLO BT100 Bluetooth 5.4 Audio Receiver Transmitter.

2. Product Features

• New Upgrade Bluetooth 5.4 Chip: Offers improved compatibility and stability, backward compatible with older Bluetooth versions for seamless connection with various devices.
• HiFi Stereo Lossless Sound Quality: High-resolution audio restoration for a CD-level music experience with wireless HiFi stereo streaming.
• DSP Audio Decoding: Equipped with a professional-grade DSP decoding chip to restore high-fidelity stereo surround sound quality.
• EQ Sound Effects: Supports Normal, Classic, Popular, Rock, Jazz, and Rural sound effects, switchable via remote control.
• External Antenna: Provides a 15-meter barrier-free transmission distance for stable audio signals and lower latency.
• Large Capacity Battery: Built-in 1000mAh rechargeable lithium polymer battery provides approximately 40 hours of continuous listening, 2 hours charging time, and 180 days standby.
• Durable Material: Aluminum alloy casing ensures durability, efficient heat dissipation, and a premium aesthetic.
• Dedicated Audio Interfaces: Independent RX (OUT) and TX (IN) AUX interfaces optimize audio output/input for perfect lossless sound quality.
• Multiple Modes: Supports Bluetooth Receiver (RX), Bluetooth Transmitter (TX), and USB U-Disk Playback modes.
• IR Remote Control: Control functions from 8-10 meters away, including volume adjustment, mode switching, song switching, and EQ sound effect switching. (Note: Remote control only powers off, device button required for power on).

3. Specifications

4. Package Contents

Please check the package for the following items:

• 1x VAORLO BT100 Bluetooth 5.4 Audio Adapter (Host)
• 1x User Manual
• 1x Bluetooth Antenna
• 1x Type-C Charging Cable
• 1x 3.5MM AUX Audio Cable
• 1x RCA Audio Cable
• 1x Remote Control

Note: U-Disk is not included.

5. Setup

5.1 Interface Diagram

Front and back view of the BT100 adapter with labeled ports and controls, including the remote control layout.

• TX/IN Port: Audio input for Transmitter Mode.
• DC 5V Port: Type-C charging interface.
• RX/OUT Port: Audio output for Receiver Mode.
• Antenna Port: For connecting the external Bluetooth antenna.
• USB Port: For U-Disk playback.
• READ Button: For U-Disk functions.
• Control Buttons: Volume/Previous/Next, Play/Pause/Power.
• LED Indicators: RX (blue), TX (red), USB (blue).

5.2 Charging the Device

Before initial use, fully charge the BT100 adapter. Connect the provided Type-C charging cable to the DC 5V port on the device and to a standard USB power adapter (not included). The charging indicator light will show the charging status. A full charge takes approximately 2 hours and provides about 40 hours of continuous listening or 180 days of standby time.

The BT100 features a 1000mAh battery for extended use.

6. Operating Instructions

6.1 Power On/Off

• Power On: Long press the power button (marked with ⏻) on the device. The blue indicator light will flash.
• Power Off: Long press the power button (marked with ⏻) on the device. The blue indicator light will turn off.
• Sleep Function: If no operation is performed after powering on, the device will automatically shut down after 10 minutes.

6.2 Bluetooth Receive Mode (RX)

In RX mode, the BT100 acts as a receiver, allowing you to stream audio wirelessly from your Bluetooth-enabled devices (e.g., smartphone, tablet, laptop) to non-Bluetooth audio equipment (e.g., wired speakers, home stereo, car stereo).

1. Ensure the BT100 is powered on. The blue RX indicator light will flash, indicating it's in pairing mode.
2. Connect the BT100's RX/OUT port to your audio equipment (e.g., amplifier, wired speakers) using the provided 3.5MM AUX audio cable or RCA audio cable.
3. On your Bluetooth-enabled device (e.g., smartphone), search for Bluetooth devices and select "BT100" to pair.
4. Once successfully paired, the blue RX indicator light on the BT100 will become solid. You can now play music from your device through your audio equipment.

RX Receiving Mode: Connect your phone/tablet/laptop to speakers or headphones.

6.3 Bluetooth Transmit Mode (TX)

In TX mode, the BT100 acts as a transmitter, allowing you to send audio wirelessly from non-Bluetooth audio sources (e.g., TV, PC, game console) to Bluetooth headphones or speakers.

1. Ensure the BT100 is powered on.
2. Connect the BT100's TX/IN port to your audio source device (e.g., TV, PC, PS5) using the provided 3.5MM AUX audio cable.
3. The red TX indicator light on the BT100 will flash, indicating it's in pairing mode.
4. Turn on your receiving Bluetooth device (e.g., Bluetooth headphones, Bluetooth speaker) and put it into pairing mode.
5. The BT100 will automatically search for and connect to the receiving Bluetooth device.
6. Once successfully connected, the red TX indicator light on the BT100 will become solid. Audio from your source device will now be transmitted to your Bluetooth headphones or speakers.

TX Transmit Mode: Connect your TV/PC to Bluetooth headphones or speakers.

6.4 USB U-Disk Playback Mode

The BT100 supports direct playback of audio files from a USB flash drive.

1. Ensure the BT100 is powered on.
2. Insert a USB flash drive containing MP3, WAV, APE, or FLAG audio files into the USB port on the device.
3. The device will automatically enter music playback mode, and the blue USB indicator light will be solid.
4. Use the device buttons or remote control to manage playback (play/pause, next/previous song, volume).

Plug and play U-Disk functionality for direct music playback.

6.5 Remote Control Functions

The included infrared remote control allows for convenient operation from a distance of 8-10 meters.

6.6 LED Indicator Lights

• Bluetooth Receive Pairing (RX): Blue light flashes.
• Bluetooth Receive Paired (RX): Blue light is solid.
• Bluetooth Transmit Pairing (TX): Red light flashes.
• Bluetooth Transmit Paired (TX): Red light is solid.
• USB Flash Drive/Playback: Blue USB indicator light is solid.

7. User Tips

• For optimal sound quality, ensure all audio cables are securely connected to their respective ports.
• When using the remote control, remember that its power button only turns the device off. To power the device on, you must use the physical power button on the BT100 unit.
• If you experience any connection issues, verify that the BT100 is within the 15-meter transmission range and that there are no significant physical obstructions.
• Experiment with the various EQ sound effects available via the remote control to customize your audio experience for different music genres or content.
• To ensure stable transmission, keep the external antenna upright and unobstructed.

8. Troubleshooting

• Device does not power on:
  • Ensure the battery is charged. Connect the Type-C charging cable and allow it to charge for at least 30 minutes before attempting to power on again.
  • Press and hold the power button on the device itself, not just the remote control.
• Cannot connect via Bluetooth (RX or TX mode):
  • Verify the BT100 is in the correct mode (RX for receiving, TX for transmitting).
  • Ensure the BT100 and the target Bluetooth device are both in pairing mode (flashing indicator light).
  • Make sure both devices are within the 15-meter transmission range.
  • Try restarting both the BT100 and the target Bluetooth device.
  • Clear previous Bluetooth pairings on your source/receiving device and try pairing again.
• No sound output:
  • Check all audio cable connections (3.5MM AUX, RCA) to ensure they are secure and in the correct ports (RX/OUT for receiver, TX/IN for transmitter).
  • Adjust the volume on both the BT100 and the connected audio equipment/headphones.
  • Ensure the device is not muted (check remote control).
  • Confirm that the BT100 is successfully paired (solid indicator light).
• USB U-Disk not playing:
  • Ensure the U-Disk is inserted after the BT100 is powered on.
  • Check that the audio files on the U-Disk are in a supported format (MP3, WAV, APE, FLAG).
  • Try a different U-Disk to rule out a faulty drive.

9. Maintenance

• Cleaning: Use a soft, dry cloth to clean the device. Avoid using harsh chemicals or abrasive materials.
• Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
• Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in use for extended periods.
• Handling: Handle the device with care to prevent physical damage. Avoid dropping or subjecting it to strong impacts.

10. Warranty and Support

For warranty information and customer support, please refer to the seller or the official product page where you purchased the device. You may also find additional resources and a detailed user manual in PDF format at the following link:

View User Manual (PDF)

Please retain your proof of purchase for any warranty claims.