ELECOM Bluetooth 5.3 Audio Transmitter & Receiver

1. Introduction

Thank you for purchasing the ELECOM Bluetooth 5.3 Audio Transmitter & Receiver (Model: LBT-ATR01BK). This versatile device allows you to wirelessly transmit or receive audio signals, enabling you to connect non-Bluetooth audio sources to Bluetooth headphones/speakers, or connect Bluetooth-enabled devices to non-Bluetooth audio systems. Its compact design and long battery life make it ideal for various uses, including in-flight entertainment, TV audio, and car audio systems.

Image: The ELECOM Bluetooth Transmitter & Receiver (LBT-ATR01BK) shown with its included audio extension cable.

2. Package Contents

• ELECOM Bluetooth Audio Transmitter & Receiver (LBT-ATR01BK)
• USB Charging Cable (USB-A to USB Type-C™)
• Audio Extension Cable
• Instruction Manual (Paperless, available online)

3. Product Features

• Dual Mode Functionality: Easily switch between Transmitter (TX) and Receiver (RX) modes with a single switch.
• Versatile 3.5mm Plugs: Features two rotating φ3.5mm plugs, supporting both single and dual plug configurations for compatibility with various devices, including aircraft dual jacks and standard headphone jacks.
• Long Battery Life: Up to approximately 24 hours of continuous music playback.
• Use While Charging: The device can be used continuously while connected to a power source for charging.
• Dual Stream (Transmitter Mode): Connect up to two Bluetooth earphones/headphones simultaneously to share audio.
• Compact and Lightweight: Designed for portability, measuring approximately 43mm (W) x 15mm (D) x 46mm (H) and weighing about 22g.
• Aircraft Carry-on Compliant: Battery capacity is below 2Wh, allowing it to be carried onto aircraft (check airline policies for details).
• Included Audio Extension Cable: Provides flexibility for connecting in hard-to-reach ports (single plug configuration only).

Image: This diagram illustrates how the device allows you to listen to TV audio wirelessly and use your wireless earphones on an airplane.

Image: The swing-type plugs rotate to support both single and dual 3.5mm connections. For single plug use, a stereo plug is recommended. Note: Image is for illustration purposes. May not be insertable in some aircraft.

4. Setup

4.1. Charging the Device

1. Connect the included USB charging cable (USB-A to USB Type-C™) to the device's USB Type-C port.
2. Connect the other end of the USB cable to a USB power adapter (DC5V, sold separately) or a computer's USB port.
3. The charging indicator light will illuminate. Charging typically takes approximately 2 hours.
4. Once fully charged, the indicator light may change or turn off depending on the device status.

Note: The device can be used while charging.

Image: The device features a USB Type-C charging port and offers approximately 24 hours of continuous playback.

4.2. Powering On/Off

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

5. Operating Instructions

5.1. Switching Modes (Transmitter/Receiver)

Use the dedicated switch on the side of the device to toggle between Transmitter (TX) and Receiver (RX) modes.

Image: This diagram illustrates the Transmitter and Receiver modes. The device can be switched between modes with a single button.

5.2. Transmitter Mode (TX)

Use this mode to send audio from a non-Bluetooth device (e.g., TV, airplane entertainment, PC) to Bluetooth headphones or speakers.

1. Switch the device to Transmitter (TX) mode.
2. Connect the 3.5mm audio plugs of the LBT-ATR01BK to the audio output jack(s) of your non-Bluetooth device. Use one plug for standard stereo jacks or two plugs for dual jacks (e.g., on aircraft). If the port is hard to reach, use the included audio extension cable (for single plug connections only).
3. Power on the LBT-ATR01BK. It will automatically enter pairing mode (indicator light will flash rapidly).
4. Put your Bluetooth headphones or speakers into pairing mode.
5. The LBT-ATR01BK will automatically search for and connect to your Bluetooth audio device. Once connected, the indicator light will change (e.g., slow flash or solid).
6. Adjust the volume on your connected Bluetooth device.

Dual Stream Function: To connect a second pair of Bluetooth headphones/earphones, put the second device into pairing mode after the first one is connected. The LBT-ATR01BK will attempt to connect to the second device.

Image: In Transmitter mode, the device connects non-Bluetooth sources like TVs or PCs to Bluetooth headphones or earphones.

5.3. Receiver Mode (RX)

Use this mode to receive audio from a Bluetooth-enabled device (e.g., smartphone, tablet) and output it to a non-Bluetooth audio system (e.g., wired speakers, stereo system).

1. Switch the device to Receiver (RX) mode.
2. Connect the 3.5mm audio plug(s) of the LBT-ATR01BK to the audio input jack(s) of your non-Bluetooth audio system.
3. Power on the LBT-ATR01BK. It will automatically enter pairing mode (indicator light will flash rapidly).
4. On your Bluetooth-enabled device (e.g., smartphone), go to Bluetooth settings and select "LBT-ATR01BK" from the list of available devices to pair.
5. Once paired, the indicator light on the LBT-ATR01BK will change.
6. Play audio on your Bluetooth-enabled device. The sound will be output through your connected audio system.

Image: In Receiver mode, the device connects Bluetooth sources like smartphones to non-Bluetooth speakers or stereo systems.

6. Maintenance

• Clean the device with a soft, dry cloth. Do not use liquid cleaners or aerosols.
• Avoid exposing the device to extreme temperatures, humidity, or direct sunlight.
• Do not attempt to disassemble or repair the device yourself. This will void the warranty.
• Store the device in a cool, dry place when not in use.

7. Troubleshooting

7.1. No Sound or Intermittent Audio

• Ensure the device is fully charged.
• Verify that the device is in the correct mode (Transmitter or Receiver).
• Check that the 3.5mm audio plugs are securely inserted into both the LBT-ATR01BK and the audio source/destination.
• Ensure your Bluetooth headphones/speakers or smartphone are properly paired with the LBT-ATR01BK. Try re-pairing if necessary.
• Adjust the volume on both the LBT-ATR01BK (if applicable) and the connected audio device.
• Reduce the distance between the LBT-ATR01BK and the connected Bluetooth device, and ensure there are no obstructions.
• If using the extension cable, ensure it is fully inserted and not damaged.

7.2. Audio Delay (Latency)

• Bluetooth audio transmission inherently has some latency. This device uses the SBC codec, which may exhibit noticeable delay, especially with video content.
• For critical applications like gaming or watching movies where lip-sync is important, a wired connection might be preferable.
• If using dual output (TV speakers and Bluetooth headphones), the delay will cause an echo effect. It is recommended to use only one audio output method.

7.3. Difficulty Pairing

• Ensure both the LBT-ATR01BK and the target Bluetooth device are in pairing mode.
• Turn off and then turn on both devices.
• Clear previous pairing records on your Bluetooth device and try pairing again.
• Ensure no other Bluetooth devices are interfering with the pairing process.

8. Specifications

9. Warranty

This product comes with a 1-year warranty from the date of purchase. Please retain your proof of purchase for warranty claims. The warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accident, unauthorized modification, or natural disasters.

10. Support

For further assistance, technical support, or warranty inquiries, please visit the official ELECOM website or contact ELECOM customer service in your region. Refer to the packaging or official website for contact details.