VAORLO TX40 USB Bluetooth 5.2 Audio Transmitter Instruction Manual

Introduction

The VAORLO TX40 is a high-performance USB Bluetooth 5.2 Audio Transmitter designed to add Bluetooth audio capabilities to devices that lack them. Featuring a Qualcomm QCC3040 chip, it supports advanced audio codecs like aptX-Adaptive, aptX-LL (Low Latency), and aptX-HD, ensuring high-fidelity sound with minimal delay. This adapter is driver-free, plug-and-play, and compatible with a wide range of systems and devices, including Nintendo Switch, PlayStation consoles, PCs, and smart TVs. It allows for multi-point connection, enabling two Bluetooth headsets or speakers to be connected simultaneously.

Product Overview

Key Features

• Advanced Bluetooth 5.2: Equipped with a Qualcomm QCC3040 chip for stable and fast connections.
• Low Latency Audio: Supports aptX-LL mode with 40ms low latency and 600kbps transmission, ideal for gaming and video.
• High-Fidelity Sound: Supports 24Bit 96KHz audio sampling frequency and bit depth.
• Multiple Audio Codecs: Compatible with SBC, APTX, APTXLL, APTXHD, and APTX Adaptive.
• Driver-Free & Plug-and-Play: No software installation required for most supported operating systems.
• Multi-Point Connection: Connects up to two Bluetooth speakers or headphones simultaneously (using the same CODEC, up to aptX Adaptive).
• Wide Compatibility: Works with Nintendo Switch (including TV mode and handheld mode with adapter), PS4/PS5, PC (Windows 7-10, Mac OS, Linux, Android), TV, Projectors, Power Amplifiers, and TV Boxes.
• Automatic Memory Connection: Remembers previously paired devices for quick reconnection.
• Voice Call Support: Supports voice calls with one receiving device (Bluetooth headphones/speakers must have call function).
• Volume Enhancement: Achieves 2x volume enhancement on Nintendo Switch, PS4, PS4 SLIM, PS4 Pro, and PS5.

Specifications

Note: The TX40 is an audio transmitter only. It does not function as a receiver and cannot be used for Bluetooth keyboards, mice, or file transfer.

Figure 1: VAORLO TX40 USB Bluetooth Audio Transmitter Dimensions.

Setup Guide

1. Connect the Transmitter: Plug the VAORLO TX40 USB Bluetooth Audio Transmitter into a compatible USB port on your device (e.g., Nintendo Switch dock, PC, PS4/PS5, TV Box). If using with a Nintendo Switch in handheld mode, attach the provided Type-C adapter first, then plug the transmitter into the Switch's USB-C port.
2. Power On: The transmitter will power on automatically when connected to a powered USB port.
3. Driver-Free Operation: The TX40 is designed for plug-and-play functionality and typically does not require any driver installation on supported operating systems (Windows, MacOS, Linux, Android).
4. Prepare Receiving Device: Ensure your Bluetooth headphones or speakers are in pairing mode.

Figure 2: Driver-free installation on various operating systems.

Figure 3: Connecting the TX40 to a Nintendo Switch in TV mode.

Figure 4: Connecting the TX40 to a TV Box.

Operating Instructions

1. Pairing and Connecting the First Device

1. Upon power-on, the transmitter defaults to reconnect mode, indicated by a slow flashing blue light.
2. If no device is connected within 20 seconds, it will automatically enter search pairing state, and the indicator will flash red and blue alternately.
3. Ensure your Bluetooth headphones or speakers are in pairing mode. The transmitter will automatically search for and connect to the device.
4. Once successfully paired, the LED indicator will remain steadily lit, and its color will change according to the audio transmission format (see Indicator Status section).

Figure 5: Automatic memory connection after initial pairing.

2. Pairing a Second Device (Multi-Point Connection)

1. To pair a second Bluetooth device, first turn off the currently paired device.
2. Unplug and then re-plug the TX40 transmitter from its USB port. This will reset its pairing state.
3. Turn on the second Bluetooth device and put it into pairing mode.
4. The transmitter will automatically search for and pair with the second device.
5. After successful pairing with the second device, turn on the first Bluetooth device. The transmitter will automatically reconnect to both devices, enabling dual-stream audio.

Indicator Status

The VAORLO TX40 features a multi-color LED indicator to show its current status:

• Search for Pairing: Flashing red and blue alternately
• Connection Status: Blue light flashes slowly
• Pairing Successful: LED is always on

Audio Format Indicator (when pairing is successful and LED is always on):

• SBC: Steady blue
• Aptx: Steady cyan
• Aptx-LL: Steady white
• Aptx-HD: Steady green
• Aptx-Adaptive: Orange is always on

Figure 6: LED Indicator descriptions for various states and audio codecs.

Compatibility

The VAORLO TX40 is designed for broad compatibility with various devices and operating systems:

• Gaming Consoles: Nintendo Switch (including OLED and Lite models), PS4, PS4 SLIM, PS4 Pro, PS5.
• Computers: Windows 7-10, Mac OS, Linux, Android.
• Other Devices: Smart TVs (that support USB audio output), Projectors, Power Amplifiers, TV Boxes (Android 4.2 and above).
• Receiving Devices: Compatible with most Bluetooth headsets and speakers from major brands.

Important Note on aptX Adaptive: aptX Adaptive is a newer Bluetooth 5.2 codec. For the TX40 to utilize aptX Adaptive, your Bluetooth headphones or speakers must also support this codec, typically those with Qualcomm QCC 304x/QCC 51x chips or later self-adaptive chips.

Figure 7: Supported terminal devices and connections.

Figure 8: Adaptive coding support and compatible headset examples.

Figure 9: Comparison of delay and transmission rates for various aptX codecs.

Figure 10: Smart TV usage with Bluetooth speakers and microphones.

Figure 11: Computer audio sampling frequency and bit depth settings.

Troubleshooting

If you encounter issues with pairing or connection, consider the following:

1. Transmitter Indicator: Check the indicator light on the TX40. If it is steadily on, it means it is already paired and connected to another device. You will need to turn off the connected receiving device, then unplug and re-plug the transmitter to force it into search pairing mode (flashing red and blue alternately) before attempting to pair with a new device.
2. Receiving Device Pairing Mode: Ensure your Bluetooth headphones or speakers are actively in pairing mode. Refer to your receiving device's manual for instructions on how to enter pairing mode.
3. Interference: Try to keep the transmitter away from sources of strong interference, such as wireless routers, which can disrupt Bluetooth signals.
4. Re-plugging: Sometimes simply unplugging and re-plugging the TX40 can resolve minor connection glitches.

User Tips

• Volume Boost for Gaming: For Nintendo Switch and PlayStation consoles (PS4/PS5), the TX40 can provide a 2x volume enhancement, which can be beneficial in gaming environments.
• Dedicated Audio Transmitter: Remember that the TX40 is solely an audio transmitter. It cannot be used for data transfer, connecting Bluetooth keyboards, or mice.
• Optimal Codec Performance: To experience the full benefits of aptX-Adaptive, ensure your Bluetooth headphones or speakers also support this codec.
• Automatic Reconnection: The TX40 will automatically reconnect to previously paired devices upon subsequent power-ons, simplifying daily use.

Maintenance

To ensure the longevity and optimal performance of your VAORLO TX40 USB Bluetooth Audio Transmitter, follow these simple maintenance guidelines:

• Cleaning: Gently wipe the device with a soft, dry cloth to remove dust or smudges. Do not use liquid cleaners or abrasive materials.
• Storage: Store the transmitter in a cool, dry place away from direct sunlight, extreme temperatures, and humidity when not in use.
• Handling: Avoid dropping the device or subjecting it to strong impacts, as this can damage internal components.
• USB Port Care: Ensure the USB port on the transmitter and your host device are clean and free of debris before connecting.

Warranty and Support

VAORLO products are manufactured to high-quality standards. If you experience any issues with your TX40 USB Bluetooth Audio Transmitter, please contact the seller or manufacturer's customer support for assistance. Keep your purchase receipt as proof of purchase for any warranty claims.