The Sound Mode indicator does not light up in cyan even when I cast (play) the music using the 360 Reality Audio compatible streaming app (SRS-RA Series).

IMPORTANT: This article applies only to specific products and/or operating systems. Check the Applicable Products and Categories section of this article before starting these steps.

Check the following to troubleshoot this issue:

• Check that the music you are playing is compatible with 360 Reality Audio.
  Note: Please be aware that some of the music content offered in the 360 Reality Audio music streaming app is not 360 Reality Audio compatible.
• Check that the smartphone and the speaker are connected to the same Wi-Fi network.
  Note: You cannot play 360 Reality Audio music via Bluetooth connection.
• Make sure that the Wireless Speaker is updated to the latest version.

Example: When you cast 360 Reality Audio music using the Amazon Music Unlimited service, select 3D Audio music in the Amazon Music app, and then tap the source device.

A: Chromecast built-in device name (360 Reality Audio playback available)
Note: This icon will be displayed only for Android apps.
B: Amazon Alexa device name (360 Reality Audio playback available)

For details, refer to the How to play 360 Reality Audio music using the Amazon Music Unlimited service article.