Slumber 2 - Missing First Words or Audio Cut-Off?

Quick Check

1. Increase your phone volume (IMPORTANT)

• Set your phone's Bluetooth/media volume to 80–100%.

• Then use the Slumber 2 controller to adjust the listening volume to a comfortable level.

• Re-test the audio

👉 In many cases, this alone fixes the issue.

2. Restart the connection

• Turn Bluetooth OFF.

• Wait 10 seconds.

• Turn Bluetooth ON again and reconnect Slumber 2.

Still Not Working?

Our engineering team is currently upgrading the Slumber 2 controller to further improve Bluetooth audio performance and stability.

If you still experience:

• Missing first words 
• Audio cut-offs 
• Audio interruptions or skipping

after trying the steps above, please contact us:

📧 support@avantree.com

Once the upgraded controller becomes available, we'll be happy to arrange a replacement with the latest version for you.