SOARUN Bluetooth 5.4 Transmitter Receiver B108 Instruction Manual

1. Introduction

The SOARUN B108 is a versatile 2-in-1 Bluetooth 5.4 audio adapter designed for both transmitting and receiving audio signals wirelessly. This device allows you to convert non-Bluetooth audio sources into Bluetooth-enabled ones (Transmitter Mode) or enable non-Bluetooth audio devices to receive Bluetooth audio (Receiver Mode). It features low-latency audio transmission, support for connecting two headphones simultaneously, and a long-lasting battery, making it suitable for various environments such as home entertainment, travel (airplane, car), and personal audio.

2. Product Overview

2.1 Key Features

• Bluetooth 5.4 Technology: Ensures stable and efficient wireless connection with ultra-low latency (aptX-LL support) for synchronized audio and video.
• 2-in-1 Functionality: Operates as both a Bluetooth transmitter (TX) and receiver (RX).
• Dual Headphone Connection: Allows simultaneous audio streaming to two Bluetooth headphones or earbuds in TX mode.
• Extended Battery Life: Up to 24 hours in RX mode and 20 hours in TX mode on a single charge (300 mAh battery).
• Universal Compatibility: Connects via 3.5mm audio jack or RCA, compatible with TVs, PCs, car stereos, home speakers, smartphones, tablets, and airplane entertainment systems.
• Compact and Portable Design: Lightweight and easy to carry for travel.
• Fast Charging: USB-C charging port, fully charged in approximately 2 hours.

2.2 Package Contents

Verify that all items are present in the box:

• SOARUN Bluetooth 5.4 Transmitter Receiver (B108) x 1
• USB-C Charging Cable x 1
• 3.5mm Audio Cable x 1
• RCA Audio Cable x 1
• Dual 3.5mm Airplane Audio Adapter x 1

Image: Detailed view of the SOARUN B108 device with labeled components (3.5mm jack, LED indicators, multifunction button, P/R button, mode switch, charging port, microphone) and a visual representation of all included accessories: Bluetooth adapter, USB-C cable, RCA cable, 3.5mm auxiliary converter, and dual 3.5mm airplane jack.

3. Setup and Pairing

3.1 Charging the Device

1. Connect the provided USB-C charging cable to the device's charging port.
2. Plug the other end of the USB-C cable into a USB power adapter (not included) or a computer's USB port.
3. The charging indicator light will illuminate. Once fully charged (approximately 2 hours), the light will change or turn off depending on the device's status.

Image: The SOARUN B108 device connected to a USB-C charging cable, illustrating its 24-hour battery life in RX mode and 20-hour battery life in TX mode.

3.2 General Pairing Instructions

The pairing process is similar for both Transmitter (TX) and Receiver (RX) modes. Ensure the device is sufficiently charged before pairing.

1. Power On: Slide the mode switch to either TX or RX position to power on the device. The LED indicator will flash, indicating it's in pairing mode.
2. Activate Pairing on Second Device: Place your Bluetooth headphones, speaker, or smartphone into pairing mode. Refer to the second device's manual for specific instructions.
3. Connect: The SOARUN B108 will automatically search for nearby Bluetooth devices. Once connected, the LED indicator will stop flashing and remain solid.
4. Pairing a Second Device (TX Mode only): Press the P/R button on the SOARUN B108 to initiate pairing for a second headphone.

4. Operating Modes

The SOARUN B108 features two operating modes: Transmitter (TX) and Receiver (RX). Select the desired mode using the TX/RX switch on the side of the device.

Image: A diagram illustrating the two operating modes of the SOARUN B108. The top section shows Transmitter (TX) mode connecting to devices like airplanes, TVs, and computers, transmitting audio to headphones, earbuds, or Bluetooth speakers. The bottom section shows Receiver (RX) mode connecting to phones, tablets, and computers, receiving audio from car stereos, amplifiers, or wired speakers.

4.1 Transmitter (TX) Mode

In TX mode, the B108 transmits audio from a non-Bluetooth device to Bluetooth headphones or speakers. This mode is indicated by the TX LED.

1. Switch to TX Mode: Slide the switch on the device to the "TX" position.
2. Connect to Audio Source: Plug the 3.5mm audio cable into the B108's 3.5mm jack and the other end into the audio output port of your non-Bluetooth device (e.g., TV, PC, airplane entertainment system). Use the RCA cable or airplane adapter if necessary.
3. Pair with Bluetooth Headphones/Speakers: Follow the general pairing instructions (Section 3.2) to connect your Bluetooth headphones or speakers to the B108.
4. Dual Headphone Connection: After connecting the first headphone, press the P/R button to pair a second Bluetooth headphone. Both headphones will receive audio simultaneously.

Image: The SOARUN B108 connected to an airplane entertainment system using both a single 3.5mm jack and a dual 3.5mm airplane adapter, demonstrating compatibility with different port types for wireless audio to AirPods.

Image: A couple watching TV with headphones, illustrating the SOARUN B108 in TX mode connected to a television, allowing two headphones to receive audio simultaneously.

4.2 Receiver (RX) Mode

In RX mode, the B108 receives Bluetooth audio from a smartphone or tablet and outputs it to a non-Bluetooth audio device. This mode is indicated by the RX LED.

1. Switch to RX Mode: Slide the switch on the device to the "RX" position.
2. Connect to Audio Output Device: Plug the 3.5mm audio cable into the B108's 3.5mm jack and the other end into the audio input port of your non-Bluetooth audio system (e.g., car stereo, home amplifier, wired speaker).
3. Pair with Bluetooth Audio Source: Enable Bluetooth on your smartphone or tablet and select "SOARUN B108" from the list of available devices to pair.
4. Play Audio: Once connected, audio played on your smartphone or tablet will be streamed wirelessly to your connected audio system.

Image: A person driving a car, with the SOARUN B108 connected to the car's audio system, demonstrating its use in RX mode for hands-free music and calls.

5. Maintenance

To ensure the longevity and optimal performance of your SOARUN B108, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the device. Avoid using abrasive cleaners, solvents, or harsh chemicals.
• Storage: Store the device in a cool, dry place away from direct sunlight, extreme temperatures, and humidity.
• Avoid Water: This device is not waterproof. Keep it away from liquids to prevent damage.
• Handle with Care: Avoid dropping or subjecting the device to strong impacts.
• Charging: Use only the provided USB-C cable for charging. Do not use damaged cables or chargers.

6. Troubleshooting

If you encounter issues with your SOARUN B108, refer to the following common problems and solutions:

7. Specifications

8. Warranty and Support

Specific warranty information and direct customer support contact details are not provided within this manual. For warranty claims, technical assistance, or further inquiries, please refer to the SOARUN official website or contact the retailer from whom you purchased the product. Keep your proof of purchase for warranty purposes.