Bose PROFLIGHT Owner's Manual page 24

5. Insert two alkaline AA batteries, observing proper polarity.
CAUTION: If the batteries don't fit correctly, do NOT force them in. Forcing an
improper connection will cause permanent damage to the control
module.
6. Close the battery cover, press firmly down on the finger indent, and slide the cover
into place.
OP ER ATI ON SW ITC H E S OP ER ATI ON SWI TCH E S
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