General Bluetooth Information – Avantree Support

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Bluetooth Basics – What You Need to Know

Bluetooth lets two compatible devices connect wirelessly. Learn how Bluetooth works, how to connect your devices, and how to fix common problems.

Bluetooth works best when two devices are close together with a clear path between them.

Things that can reduce Bluetooth range:

Sound cutting out or only working nearby? Move the two Bluetooth devices closer together and test again.

A Bluetooth transmitter sends audio to another Bluetooth device.

Examples:

Example:

TV → Avantree Transmitter → Bluetooth Headphones

The transmitter receives audio from the TV and sends it wirelessly to the headphones.

3. What Is a Bluetooth Receiver?

A Bluetooth receiver receives Bluetooth audio from another device.

Examples:

Some devices can work as either a transmitter (TX) or receiver (RX), depending on their design and selected mode.

4. Bluetooth Devices Must Be Compatible

Having Bluetooth on both devices does not always mean they can connect to each other.

The two devices must support compatible Bluetooth functions.

Example: A TV may have Bluetooth for its remote control but may not support Bluetooth headphones.

Check your device manual to confirm whether it supports Bluetooth audio.

5. Why Won't My Bluetooth Devices Pair?

Bluetooth pairing may fail for several reasons:

Not in pairing mode: A device may be turned ON but not ready to pair.
Already connected elsewhere: Headphones or speakers may automatically connect to a previously paired phone, computer, or TV.
Too far apart: Distance or obstacles may prevent the devices from finding each other.
Not compatible: The devices may not support the same Bluetooth audio functions.
Wireless interference: Nearby wireless equipment may disrupt pairing.

Important: Simply turning a Bluetooth device ON does not always put it into pairing mode. Pairing instructions vary by device model.

6. Why Does Bluetooth Connect to the Wrong Device?

Headphones and speakers may automatically reconnect to a phone, tablet, computer, or TV they were previously paired with.

How to fix it:

7. Why Is Bluetooth Sound Delayed?

Bluetooth audio takes a small amount of time to process and transmit sound.

The delay depends on the Bluetooth devices and audio technology being used.

For TV watching or gaming: Both devices need to support compatible low-latency technology to achieve the lowest possible audio delay.

Still Need Help with Your Bluetooth Connection?

Contact Avantree Support and include your product model, the device you are trying to connect, and a brief description of the problem.