Power button, no light: Product is OFF. Power button, constant light: Product is ON. Power button: constant white, when no Bluetooth device connected. Power button, flashing blue in Bluetooth pairing mode. Power button, constant blue light: Bluetooth connected. Battery indicator LEDs: Five LEDs show battery level. When charging, the blinking LED shows how far charging has progressed. When fully charged, the LED lights will turn off. JBL Connect button flashes white in connection mode. When connected: constant light.