No sound from the speaker

The speaker is not connected to USB to AC power adapter or the battery is not charged. Connect power and turn on the speaker. link

The volume is too low on your connected device. Turn up the volume on your device to about 90 % and then adjust the volume on the speaker. link

There is no connected Bluetooth device. Pair and connect a Bluetooth device and try again. link

There is no connected AUX device. Connect an audio device to the AUX input using a stereo 3.5mm cable and make sure music playing music on your device. link

The AUX input connector of Envaya is compatible with stereo mini plug cables that have 3-conductor plugs. Be sure to use a 3-conductor stereo mini plug cable. link