With the speaker turned on, tap and hold the VOL (volume) – button and the (on/standby) button at the same time for more than 5 seconds.

When the speaker receives the signal, the (on/standby) button flashes in green quickly for about two seconds.

The speaker is initialized, and it enters the standby mode. All settings of the speaker return to their factory defaults. All the pairing information and all the network settings are deleted.