When Boom 2 Plus is charging a phone, turning the Boom 2 Plus on or off will trigger the device to light up as it detects a phone has been plugged in. Once the program identifies that the inserted device is not a charger, it will turn off the light and stop charging the speaker（when the speaker is turned off and the phone is plugged in, by default, the phone will charge the speaker）, resulting in the observed blinking. The light will turn off once the status is stable.

If you have additional questions, please contact us at service@soundcore.com for further assistance.