While using your Xen, the LED will display multiple colors to indicate what is going on.• Green will show when you initially turn your Xen on.
Blue will flash on your Xen as it looks for a Bluetooth connection.
Blue will become solid once your Xen makes a Bluetooth connection with your phone.
Purple will show once you start a session, to indicate the signal is being generated to stimulate your vagus nerve.
Green will show upon completion of your session, when you turn the device off by holding down the power button, to indicate that it is shutting off.
Red will show when your first plug in your Xen to be charged, indicating a low battery level.
Green will show when your Xen is charged.