User Manual for BlitzWolf BW-BR4 Bluetooth 5.0 Transmitter Receiver

1. Introduction

Thank you for purchasing the BlitzWolf BW-BR4 Bluetooth 5.0 Transmitter Receiver. This device is designed to provide a versatile audio solution, allowing you to transmit or receive audio wirelessly via Bluetooth 5.0. It supports aptX HD and Low Latency codecs for high-fidelity sound and minimal delay, and features a long-range connection up to 328ft (100 meters). This manual will guide you through the setup, operation, and maintenance of your device.

2. Safety Information

• Keep the device away from water, fire, and high temperatures.
• Do not attempt to disassemble, repair, or modify the device.
• Use only the provided or certified charging cables.
• Avoid dropping or subjecting the device to strong impacts.
• Dispose of the device and its components responsibly according to local regulations.

3. Package Contents

Please check the package contents upon opening. If any items are missing or damaged, contact your retailer.

• BlitzWolf BW-BR4 Bluetooth Transmitter Receiver
• User Manual
• USB Charging Cable
• 3.5mm Audio Cable
• RCA Audio Cable
• Optical Audio Cable

Image: Contents of the BlitzWolf BW-BR4 package, showing the main unit, various audio cables (3.5mm, RCA, Optical), a USB charging cable, and the user manual.

4. Product Overview

Familiarize yourself with the device's components and interfaces.

Image: Top and front views of the BlitzWolf BW-BR4 device with labels indicating the Aerial, TX/RX Mode Selection switch, Charging Interface (Micro USB), Optical Input/Output Interfaces, MFB (Multi-Function Button) for Power On/Off, Indicator Light, Audio Interface (3.5mm AUX), and RCA Cable Interface.

• Aerial: External antenna for extended range.
• TX/RX Mode Selection: Switch between Transmitter (TX) and Receiver (RX) modes.
• Charging Interface: Micro USB port for charging the device.
• Optical Input/Output: Digital audio connection for high-quality sound.
• MFB (Multi-Function Button): Power on/off, play/pause, pairing.
• Indicator Light: Shows device status (pairing, connected, charging).
• Audio Interface (AUX): 3.5mm port for analog audio connection.
• RCA Cable Interface: Red and white ports for analog audio connection.

5. Setup and Operation

5.1 Charging the Device

Before first use, fully charge the BW-BR4. Connect the provided USB charging cable to the device's charging interface and the other end to a USB power adapter (not included) or a computer's USB port. The indicator light will show charging status.

Image: A circular diagram illustrating the 600mAh Li-polymer battery, indicating up to 17 hours of working time and 175 hours of standby time on a full charge.

5.2 Power On/Off

• Power On: Press and hold the MFB button for approximately 3 seconds until the indicator light turns on.
• Power Off: Press and hold the MFB button for approximately 3 seconds until the indicator light turns off.

5.3 Mode Selection (TX/RX)

The BW-BR4 operates in two modes: Transmitter (TX) and Receiver (RX). Use the TX/RX mode selection switch on the device to choose the desired mode.

Image: A flow diagram showing the two modes of the device. In Transmitter (TX) mode, the device takes input from a computer, MP3 player, or TV and outputs to Bluetooth speakers, headphones, or extenders. In Receiver (RX) mode, the device takes input from a laptop, tablet, or smartphone and outputs to wired headphones, amplifiers, mixers, or car speakers.

5.4 Transmitter (TX) Mode Operation

In TX mode, the BW-BR4 transmits audio from a non-Bluetooth device (e.g., TV, PC) to Bluetooth headphones or speakers.

1. Set the mode switch to TX.
2. Connect the BW-BR4 to your audio source (e.g., TV, PC) using the appropriate audio cable (3.5mm AUX, RCA, or Optical).
3. Power on the BW-BR4. It will automatically enter pairing mode (indicator light flashes).
4. Put your Bluetooth headphones or speaker into pairing mode.
5. The BW-BR4 will automatically search for and connect to your Bluetooth audio device. Once connected, the indicator light will turn solid.

5.5 Receiver (RX) Mode Operation

In RX mode, the BW-BR4 receives audio from a Bluetooth-enabled device (e.g., smartphone, tablet) and outputs it to a non-Bluetooth audio system (e.g., wired speakers, car stereo).

1. Set the mode switch to RX.
2. Connect the BW-BR4 to your audio output device (e.g., wired speaker, car stereo) using the appropriate audio cable (3.5mm AUX, RCA, or Optical).
3. Power on the BW-BR4. It will automatically enter pairing mode (indicator light flashes).
4. On your Bluetooth-enabled device (smartphone, tablet), search for "BW-BR4" in the Bluetooth settings and select it to pair.
5. Once connected, the indicator light will turn solid. You can now play audio from your device through the connected audio system.

5.6 Dual Stream and Multipoint Connection

The BW-BR4 supports connecting to two Bluetooth devices simultaneously in both TX and RX modes.

• TX Mode (Dual Stream): After connecting to the first Bluetooth headphone/speaker, put the second device into pairing mode. Press the MFB button on the BW-BR4 once to search for and connect to the second device.
• RX Mode (Multipoint): After connecting to the first smartphone/tablet, disconnect Bluetooth on the first device. Pair the second smartphone/tablet. Then, reconnect Bluetooth on the first device. The BW-BR4 will maintain connection with both, allowing you to switch audio sources.

Image: An illustration demonstrating the dual stream and multipoint connection feature. It shows two people listening to audio via Bluetooth headphones connected to the BW-BR4, and two smartphones simultaneously connected to the device, indicating its ability to connect to two devices at once.

5.7 Long Range Connection

The BW-BR4 features a built-in high-gain antenna, providing an extended wireless connection range of up to 328 feet (100 meters) in open areas. This is ideal for transmitting audio from indoors to outdoors or across large rooms.

Image: An aerial view diagram of a house with concentric circles emanating from the center, illustrating a 328 ft (100 meters) wireless connection range, suggesting the device can transmit audio throughout a large home or even outdoors.

5.8 aptX HD and Low Latency Support

The BW-BR4 supports aptX HD for high-definition audio and aptX Low Latency for synchronized audio and video, minimizing delay. For these codecs to function, both the transmitting and receiving devices must also support them.

Image: A visual representation comparing audio waveforms, showing a richer, more detailed waveform labeled "aptX HD" above a less detailed waveform labeled "No aptX HD," illustrating the superior sound quality provided by aptX HD technology.

6. Maintenance

• Clean the device with a soft, dry cloth. Do not use liquid cleaners or aerosols.
• Store the device in a cool, dry place when not in use.
• Avoid exposing the device to extreme temperatures or direct sunlight for prolonged periods.

7. Troubleshooting

8. Specifications

9. Warranty and Support

BlitzWolf products come with a standard warranty. For detailed warranty information, please refer to the warranty card included in your package or visit the official BlitzWolf website. For technical support, troubleshooting, or any inquiries, please contact BlitzWolf customer service through their official channels or the retailer from whom you purchased the product.

You can find more information and support at the BlitzWolf Official Website.