Long Run Technologies LRT 879 Bluetooth Speaker Pair User Manual

1. Introduction

Thank you for choosing the Long Run Technologies LRT 879 Bluetooth Speaker Pair. This manual provides essential information for setting up, operating, and maintaining your new wireless speakers. These portable speakers offer versatile audio playback options, including Bluetooth wireless connectivity, TF/SD card support, and a 3.5mm audio input, designed for an enhanced listening experience.

2. Package Contents

Please verify that all items listed below are included in your package:

• 2 x Long Run Technologies LRT 879 Bluetooth Speakers
• 2 x Rubber Stands
• 2 x USB-C Charging Cables
• 2 x 3.5 mm Audio Cables
• 1 x User Instruction Manual

Figure 2.1: Contents of the LRT 879 Speaker Pair package, including two speakers, two rubber stands, two USB-C charging cables, two 3.5mm audio cables, and the instruction manual.

3. Product Overview

The LRT 879 speakers are engineered for portability and performance, featuring a robust design and multiple connectivity options.

Key Features:

• Material: Aircraft Grade Steel construction for durability.
• Speaker Power: 5 Watts per speaker (10 Watts total for the pair).
• Battery: Built-in 600 mAh Lithium Polymer battery, offering up to 10 hours of playtime per charge.
• Bluetooth Range: Up to 33 feet (10 meters) for wireless connectivity.
• Special Features: Bass Boost, Built-in Microphone for hands-free calls, Multi-Room Audio capability, Shockproof design.
• Control Method: Touch controls for easy operation.
• Connectivity: Bluetooth, TF/SD Card slot, and 3.5mm audio input.

Figure 3.1: An exploded diagram illustrating the internal components of the LRT 879 speaker, highlighting its 1.5-inch speaker size, 5-watt power output, 600 mAh battery, and USB-C charging port.

4. Setup and Pairing

4.1 Charging the Speakers

Before first use, fully charge both speakers. Connect the provided USB-C charging cables to the charging port on each speaker and plug the other end into a compatible USB power adapter (not included).

• The charging indicator light will illuminate during charging.
• The light will turn off or change color once charging is complete.

4.2 Power On/Off

To power on or off each speaker, long press the power button located on the speaker. An audio prompt will confirm the action.

4.3 Bluetooth Pairing

The LRT 879 speakers support both single-speaker and multi-speaker Bluetooth connections.

4.3.1 Single Speaker Bluetooth Connection

1. Ensure the speaker is charged and powered on.
2. On your Bluetooth-enabled device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
3. Select "LRT 879" (or similar name) from the list of devices. An audio prompt will confirm successful pairing.

4.3.2 Dual Speaker Pairing (True Stereo Mode)

To achieve true stereo sound with two speakers:

1. First, connect one speaker to your Bluetooth device as described in Section 4.3.1. This will be your primary speaker.
2. Turn on the second speaker.
3. On the second speaker, long press the "Phone/Play/Pause" button. You will hear an audio prompt indicating that the second speaker has joined the primary speaker, establishing a stereo pair.

4.3.3 Multi-Speaker Pairing (Unlimited Connectivity)

The LRT 879 speakers feature advanced technology allowing an unlimited number of speakers to be paired together for an immersive sound experience.

1. Follow the steps in Section 4.3.2 to pair the first two speakers into a stereo pair.
2. To add additional speakers, simply turn on each new speaker and long press its "Phone/Play/Pause" button. Each speaker will connect to the existing group, expanding your audio coverage.

Figure 4.1: Multiple LRT 879 speakers wirelessly connected to a central device, demonstrating the multi-speaker pairing capability for an immersive sound experience.

4.4 Wired Audio Connection (3.5mm Aux)

For devices without Bluetooth or for a wired connection, use the provided 3.5mm audio cable:

1. Connect one end of the 3.5mm audio cable to the AUX input port on the speaker.
2. Connect the other end of the cable to the headphone jack or audio output of your device.
3. The speaker will automatically switch to AUX mode.

4.5 TF/SD Card Playback

To play music directly from a memory card:

1. Insert a TF/SD card (pre-loaded with audio files) into the designated slot on the speaker.
2. The speaker will automatically detect the card and begin playback.

Figure 4.2: The LRT 879 speakers demonstrating wide compatibility with tablets, PCs, Macbooks, smartphones, and supporting TF/SD cards, Aux ports, and Bluetooth connections.

5. Operation

5.1 Music Playback

Once connected via Bluetooth, AUX, or TF/SD card, you can control music playback:

• Play/Pause: Short press the "Play/Pause" button.
• Volume Control: Adjust volume directly from your connected device or use the touch controls on the speaker (refer to specific button functions on your speaker).
• Next/Previous Track: Use the designated buttons on the speaker (if available) or control from your connected device.

5.2 Hands-Free Calling

With the built-in microphone, you can answer calls when connected via Bluetooth to a smartphone:

Figure 5.1: The LRT 879 speakers facilitating hands-free communication, enabled by their built-in microphone and integrated control buttons.

• Answer/End Call: Short press the "Phone" button (often combined with Play/Pause).
• Reject Call: Long press the "Phone" button.
• Redial Last Number: Double-press the "Phone" button.

6. Maintenance

To ensure the longevity and optimal performance of your LRT 879 speakers, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the speaker surfaces. Avoid abrasive cleaners or solvents.
• Storage: Store speakers in a cool, dry place away from direct sunlight and extreme temperatures.
• Water Exposure: These speakers are not waterproof. Avoid exposing them to water or high humidity.
• Handling: While designed to be shockproof, avoid dropping or subjecting the speakers to severe impacts.

7. Troubleshooting

If you encounter issues with your LRT 879 speakers, refer to the following common solutions:

• Speakers not pairing (Dual/Multi-Speaker):
  • Ensure both speakers are fully charged.
  • Verify that the primary speaker is successfully connected to your Bluetooth device.
  • Make sure all speakers are powered on and within close proximity (within 33 feet).
  • Re-attempt the pairing process for the secondary/additional speakers by long-pressing the "Phone/Play/Pause" button.
• No sound or low volume:
  • Check the volume levels on both the speaker and your connected audio device.
  • Ensure the speaker is correctly connected via Bluetooth, AUX, or TF/SD card.
  • Verify that the speakers are charged.
• Poor sound quality or intermittent connection:
  • Move the speakers closer to the audio source.
  • Avoid obstacles between the speakers and the audio source that may cause interference.
  • Ensure no other Bluetooth devices are causing interference.
• One speaker draining battery faster:
  • Ensure both speakers are fully charged before each use.
  • If the issue persists, contact customer support.

8. Specifications

9. Warranty and Support

Long Run Technologies products are designed for reliability and performance. For warranty information, technical support, or any inquiries regarding your LRT 879 Bluetooth Speaker Pair, please refer to the contact details provided on the product packaging or visit the official Long Run Technologies website.

Please retain your proof of purchase for warranty claims.