Why this speaker did not sound

Why this speaker did not sound

Why this speaker did not sound?

ANSWERS:

"To resolve this issue, try the following:

Make sure your device is connected to the speakerMake sure the transport controls of the audio device are set to playback audioMake sure the speaker is not muted and the volume is upMake sure your Bluetooth® device is playing audio, and the volume is upTurn off or disable Bluetooth on all other paired devices nearby (including Bose® preferred devices) and reconnect the device you want to hearTurn the speaker off and back on"