Poor Audio when connecting 2 pairs of TWS earbuds to my transmitter – Avantree Support

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Poor Audio When Connecting Two Pairs of TWS Earbuds

Are you experiencing audio cuts, static, or frequent disconnections when using two pairs of wireless earbuds with one Bluetooth transmitter? Here's why this happens and what you can do.

Why Does This Happen?

True Wireless Stereo (TWS) earbuds use Bluetooth to communicate with each other and with the transmitter.

When two pairs are connected to one transmitter, several Bluetooth connections must work at the same time.

This can cause:

Sound cutting in and out
Frequent Bluetooth disconnections
Audio interruptions in one or both pairs
Unstable sound quality

Important: Connecting two pairs of TWS earbuds to one transmitter may not provide a stable connection, even if both pairs connect successfully.

Step 1 – Test One Pair at a Time

Turn OFF the second pair of earbuds.
Keep only the first pair connected to the transmitter.
Play music or a video for a few minutes.
Check whether the sound is clear and stable.
Repeat the test using only the second pair.

Both pairs work normally when used separately? The problem is likely related to using two TWS pairs simultaneously.

Step 2 – Use One Pair for a More Stable Connection

For the best chance of stable audio, we recommend using one pair of TWS earbuds at a time with your transmitter.

This reduces the number of active Bluetooth connections and may help prevent audio interruptions.

Need two people to listen together? Consider using two compatible Bluetooth headphones instead of two pairs of TWS earbuds, provided your transmitter supports connecting two headphones simultaneously.

Why Do Two Pairs of TWS Earbuds Cause Connection Problems?

1. Multiple Bluetooth Connections

Each TWS pair needs to keep its left and right earbuds synchronized while receiving audio from the transmitter. Using two pairs increases wireless traffic and may cause audio interruptions.

2. Bluetooth Compatibility

Different earbud brands use different Bluetooth chips and connection technologies. Some combinations may not work reliably together.

3. Limited Wireless Capacity

Sending audio to two TWS pairs simultaneously can place additional demands on the transmitter and earbuds, resulting in unstable connections.

What If One Pair Also Has Audio Problems?

If the sound cuts out even when using only one pair, try these checks:

Keep your earbuds close to the transmitter.
Move the transmitter away from Wi-Fi routers and other wireless devices.
Make sure the earbuds are fully charged.
Turn the transmitter and earbuds OFF, then back ON.
Test the audio again.

Still having problems with one pair? The issue may be related to interference, pairing, or compatibility rather than using two TWS pairs together.

Still Need Help?

Contact Avantree Support and include your transmitter model, both earbud models, and whether each pair works normally when connected separately.

Contact Avantree Support