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Power
Plug in the guitar, and the Aura Pro switches on. To conserve the battery, remove
the instrument cable from the guitar when the system is not in use. The LEDs in
the tuner display fl ash once at power-up to tell you the preamp is on.
Low Battery Indicator
When the “Battery” LED fl ashes once every three seconds, you have approxi-
mately 1.5 hours before the battery is exhausted. Change it at the next opportu-
nity. When the “Battery” LED fl ashes every half a second, the battery is practically
spent and should be changed immediately.