Harman continuously strives to improve the performance of our speakers through software updates in the JBL Portable App. To optimize battery life and performance for your speaker, please perform a software update:
First download the JBL Portable App from the App store or Google Play store to your mobile device.
Then connect to the speaker by Bluetooth.
Open the JBL Portable App and select settings to check and install the new Software version.
The red dot indicates the presence of an update (see image below).