Isobel USB Bluetooth 5.0 Transmitter User Manual

Introduction

The Isobel USB Bluetooth 5.0 Transmitter is a versatile audio adapter designed to wirelessly transmit audio from various non-Bluetooth sources to Bluetooth-enabled headphones or speakers. It supports both USB and optical audio inputs, offering low latency and the ability to connect two devices simultaneously for a shared listening experience. This manual provides detailed instructions for setup, operation, and troubleshooting to ensure optimal performance of your device.

Image: The Isobel USB Bluetooth 5.0 Transmitter shown with its included optical cable.

Product Features

• Dual Input Modes: Functions as both a USB audio transmitter for computers and a digital optical audio transmitter for TVs, game consoles, and other non-Bluetooth devices.
• Bluetooth 5.0 + EDR: Utilizes a high-performance chip for stable, fast transmission and reduced audio delay, ensuring excellent gaming and listening experiences.
• Low Latency: Minimizes audio lag for synchronized sound, providing CD-level high-fidelity stereo sound quality.
• Dual Link Streaming: Connects up to two Bluetooth headphones or speakers simultaneously, allowing for shared audio.
• USB Powered: Draws power directly from the USB port, eliminating the need for an external power adapter.
• Plug and Play: Simple setup for USB mode, requiring no additional drivers for most computers.

Image: Diagram illustrating the dual functionality of the transmitter for USB and Optical audio sources.

Package Contents

• Isobel USB Bluetooth 5.0 Transmitter (ISUS-03)
• Digital Optical Audio Cable
• User Manual

Product Overview

Image: Detailed view of the transmitter with labeled components.

• Bluetooth Indicator (A/B): Blue LEDs indicating connection status for two paired devices.
• Optical Fiber Indicator: Red LED indicating optical mode is active.
• Switch Optical Mode Button: Press to activate optical input mode.
• Switch USB Mode Button: Press to activate USB input mode.
• USB Connector: For power and USB audio input.
• Optical Input Port: For connecting the optical audio cable.

Setup Instructions

1. USB Audio Transmitter Mode

This mode is ideal for transmitting audio from your computer (desktop or laptop) to Bluetooth headphones or speakers.

1. Insert the Isobel transmitter into an available USB port on your computer. The device will power on automatically.
2. Ensure your Bluetooth headphones or speakers are in pairing mode.
3. The transmitter will automatically search for and connect to nearby Bluetooth audio devices. The Bluetooth indicator (A or B) will illuminate blue when connected.
4. On your computer, select the Isobel transmitter as the audio output device in your sound settings.

Image: The transmitter connected to a desktop computer via USB, transmitting audio to a Bluetooth speaker.

2. Optical Audio Transmitter Mode

Use this mode for non-Bluetooth audio sources such as TVs, TV boxes, Nintendo Switch, PlayStation, or Xbox consoles.

1. Connect one end of the included optical fiber cable to the optical input port on the Isobel transmitter.
2. Connect the other end of the optical fiber cable to the digital optical audio output port on your TV, console, or other audio source.
3. Insert the USB connector of the Isobel transmitter into a USB port on your TV/console for power. If your device does not have a USB port, use a standard 5V USB power adapter (not included).
4. Press the 'Switch Optical Mode' button on the transmitter. The Optical Fiber Indicator will light up red.
5. Ensure your Bluetooth headphones or speakers are in pairing mode.
6. The transmitter will automatically search for and connect to nearby Bluetooth audio devices. The Bluetooth indicator (A or B) will illuminate blue when connected.
7. On your audio source (e.g., TV), ensure the audio output is set to 'Optical' or 'Digital Audio Out'.

Note for Xbox Users:

When using with an Xbox console, you must connect both the optical cable for audio transmission and the USB cable for power simultaneously. The USB port on Xbox series consoles is typically for power only and does not transmit audio data.

Image: The transmitter connected to an Xbox console via optical and USB for audio transmission.

3. Pairing Devices

Once the transmitter is powered on and in the correct mode (USB or Optical), it will automatically enter pairing mode. The blue Bluetooth indicators (A and B) will flash.

1. Put your Bluetooth headphones or speakers into pairing mode (refer to your device's manual for specific instructions).
2. The transmitter will automatically detect and connect to the nearest available Bluetooth audio device.
3. Once connected, the corresponding Bluetooth indicator (A or B) will stop flashing and remain solid blue.

Dual Link Connection (Connecting 2 Devices Simultaneously)

The Isobel transmitter supports connecting two Bluetooth audio devices at the same time, allowing two people to listen to the same audio source wirelessly.

1. Connect the first Bluetooth device following the pairing instructions above. The 'A' indicator will turn solid blue.
2. Put the second Bluetooth device into pairing mode.
3. The transmitter will automatically search for and connect to the second device. The 'B' indicator will turn solid blue once connected.

Image: Two individuals enjoying audio from a TV simultaneously using separate Bluetooth headphones connected to the transmitter.

Operating Instructions

Switching Between USB and Optical Modes

To switch between the USB and Optical input modes, simply press the corresponding button on the side of the transmitter:

• Press the 'Switch USB Mode' button to activate USB audio input. The blue Bluetooth indicators will be active.
• Press the 'Switch Optical Mode' button to activate optical audio input. The red Optical Fiber Indicator will light up, and the blue Bluetooth indicators will be active.

Power Supply

The Isobel transmitter is powered via its USB connection. When connected to a USB port on a computer, TV, or game console, it will draw power directly. This eliminates the need for batteries or a separate power adapter, ensuring continuous operation as long as the host device provides power.

Troubleshooting

No Sound or Static Noise:

• Ensure the transmitter is correctly connected to the audio source (USB or Optical).
• Verify that the correct input mode (USB or Optical) is selected on the transmitter.
• Check that your Bluetooth headphones/speakers are powered on, charged, and successfully paired with the transmitter (solid blue indicator).
• For optical connection, ensure the audio output setting on your TV/console is set to 'Optical' or 'Digital Audio Out'.
• Try restarting both the transmitter and your Bluetooth audio device.
• If using with Xbox, confirm both optical and USB connections are made, as Xbox USB ports are for power only.

Cannot Pair with Bluetooth Device:

• Ensure your Bluetooth headphones/speakers are in pairing mode.
• Make sure the transmitter is not already connected to another device (only two devices can be connected simultaneously).
• Move the Bluetooth device closer to the transmitter to ensure it's within range (up to 33ft/10m, but can be affected by obstacles).
• Clear previous pairings on your Bluetooth device if possible, then try pairing again.
• Restart the transmitter by unplugging and re-plugging it.

Audio Delay (Latency):

• While the transmitter features low latency, some Bluetooth headphones/speakers may introduce additional delay. Try with different Bluetooth devices if possible.
• Ensure there are no strong wireless interferences nearby (e.g., Wi-Fi routers, other Bluetooth devices).
• For TV setups, if you are also using a soundbar, there might be a slight timing difference between the soundbar and Bluetooth headphones. This is often due to processing differences in the devices.

Specifications

Maintenance

To ensure the longevity and optimal performance of your Isobel USB Bluetooth 5.0 Transmitter, please follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the device. Avoid using liquid cleaners or aerosols, as they may damage the internal components.
• Storage: Store the transmitter in a cool, dry place away from direct sunlight and extreme temperatures.
• Handling: Handle the device with care. Avoid dropping it or subjecting it to strong impacts, which can damage the internal circuitry or connectors.
• Connectivity: When inserting or removing the USB or optical cables, do so gently to prevent damage to the ports.

Warranty and Support

Isobel products are designed for reliability and performance. For any questions, technical support, or warranty inquiries regarding your Isobel USB Bluetooth 5.0 Transmitter, please refer to the contact information provided on the product packaging or visit the official Isobel website. Please retain your proof of purchase for warranty claims.