Roland EV-1-WL Connection Manual page 5

* The units automatically connect next time they
are restarted.
* If the devices do not pair after one minute has
passed, pairing mode is automatically canceled.
The EV-1-WL remembers the information
for the last Bluetooth device to which it
was connected. When connecting to a
different device after connecting to the
WM-1D, or when turning off the power
while the Bluetooth indicator is blinking
white (not connected), or when doing
a factory reset of the EV-1-WL, the unit
does not pair automatically. In this case,
you must start from step 1 to configure
the settings.
5