The headphone status indicators are located on the side of the right earcup.
Headphone status indicators
blue blinking: ready to pair
white blinking: connecting
white solid: connected
Battery indicator (while in use)
green: full charge
amber: medium charge
red blinking: charge needed
Battery charge level (for iOS devices)
when connected to the bose® soundlink® on-ear bluetooth® headphones, ios devices will display the headphone battery charge level near the upper right corner of the screen.