See also:

Replacing The Batteries
Each set of headphones requires two AAA batteries for operation. To replace the batteries: • Locate the battery compartment on the left ear cup of the headphones, and then slide the battery cov ...

Engine
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Compass Variance
Compass Variance is the difference between Magnetic North and Geographic North. To compensate for the differences the variance should be set for the zone where the vehicle is driven, per the zon ...