Avantree Lock User Manual

Support & Contact

For assistance, please contact Avantree support:

• Email: support@avantree.com
• Website: www.avantree.com

Features

• Bluetooth Version: 5.0
• Supported Audio Codecs: aptX HD, aptX Low Latency, aptX
• Audio Input Ports: Optical, 3.5mm AUX, RCA
• USB Audio Support: Yes, for both data and power
• Dual Device Connection: Supports simultaneous connection to two Bluetooth headphones or speakers.
• Extended Range: Up to 50 meters (164 feet).
• Low Latency: Designed for minimal audio delay (lip-sync).
• Battery Life: Up to 40 hours of playback.
• Charging: Can be used while charging.

Package Contents

• 1 x Avantree Lock device
• 1 x USB-C Charging Cable
• 1 x 3.5mm Audio Cable
• 1 x RCA Audio Cable
• 1 x 3.5mm to 3.5mm Audio Connector
• 1 x User Manual
• 1 x Quick Starter Guide

LED Indicators

The LED lights on the Avantree Lock indicate its status:

• Blue Solid: Indicates a stable connection to a Bluetooth device.
• Blue Flashing: Indicates the device is in pairing mode.
• Red Solid: Indicates the device is currently charging.
• Red Flashing: Indicates the battery is low.
• Green Solid: Indicates the aptX HD audio codec is active.
• Green Flashing: Indicates the aptX Low Latency audio codec is active.
• Blue/Red Flashing: Indicates the standard aptX audio codec is active.

How to Use Avantree Lock

The Avantree Lock can function as either a Bluetooth transmitter or a Bluetooth receiver, offering versatile audio connectivity.

As a Bluetooth Transmitter:

Transmit audio wirelessly from your source device to Bluetooth headphones or speakers.

Connecting to Audio Sources:

• PC: Connect via USB for digital audio and power, or use the 3.5mm AUX or Optical audio outputs.
• TV: Connect via Optical audio output, 3.5mm AUX output, or RCA audio outputs.
• Car Stereo: Connect via the car stereo's AUX 3.5mm input, RCA input, or 3.5mm input.

Connecting to Destination Devices:

Pair the Avantree Lock with your Bluetooth headphones or speakers. It supports connecting to two devices simultaneously, ideal for sharing audio.

As a Bluetooth Receiver:

Receive audio wirelessly from a Bluetooth-enabled source (like a smartphone or tablet) and output it to wired devices.

Connecting to Bluetooth Sources:

Pair your smartphone, tablet, or other Bluetooth-enabled device with the Avantree Lock.

Connecting to Output Devices:

• Wired Headphones/Earphones: Connect directly to the 3.5mm audio jack.
• Wired Speakers/Stereos: Connect using the 3.5mm, RCA, or Optical outputs to your speakers or stereo system.
• Car Stereo: Connect to the car stereo's AUX 3.5mm input, RCA input, or 3.5mm input.

Key Connection Scenarios Illustrated:

The manual provides detailed diagrams for numerous connection setups, including:

• Connecting to PC/TV via USB, Analog (3.5mm/RCA), or Optical audio, and transmitting to Bluetooth Headphones or Speakers.
• Connecting to Car Stereos (AUX, RCA, 3.5mm) and transmitting to Bluetooth Headphones or Speakers.
• Receiving audio from a Bluetooth source and outputting to wired Headphones, Speakers, or Car Stereos via various connection types.
• Utilizing USB audio for PCs and TVs, which provides both power and digital audio transmission.
• Demonstrations of dual-link functionality, allowing two Bluetooth devices to be connected simultaneously.
• Scenarios involving other Bluetooth transmitters and receivers to extend audio systems.

Troubleshooting

If you encounter issues, consider the following:

• No Sound: Verify all cable connections are secure. Ensure the volume is turned up on the Avantree Lock, the audio source, and the destination device. Confirm that the correct audio input/output is selected on your devices and that the Avantree Lock is powered on and successfully paired.
• No Bluetooth Connection: Make sure the Avantree Lock is in pairing mode (blue flashing LED). Ensure your Bluetooth headphones or speaker are also discoverable and in pairing mode. Check that both devices are within the recommended Bluetooth range. Try restarting both the Avantree Lock and the Bluetooth device.
• Audio Delay (Lip Sync Issues): For the best experience with minimal delay, ensure that both the Avantree Lock and your Bluetooth headphones/speaker support the aptX Low Latency codec. If either device does not support it, some delay may be unavoidable.
• Low Volume: Adjust the volume levels on the Avantree Lock, the audio source device, and the connected Bluetooth device.
• Difficulty Connecting Two Devices: Ensure both Bluetooth devices are compatible and within range of the Avantree Lock.

Declaration of Conformity

The Avantree Lock complies with relevant international standards, including FCC and CE regulations, ensuring safe and reliable operation.