TOYOTA 2010 Sienna - Manual (Page 314)

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3-2. Using the audio system
■
Trademark owned by SRS Labs, Inc. (type A and B)
The audio systems utilize SRS FOCUS
®
and SRS TruBass
®
audio
enhancement technologies, under license from SRS Labs, Inc., in all modes
except AM radio mode.
FOCUS, TruBass, SRS and symbols are trademarks of SRS Labs,
Inc.
FOCUS and TruBass technologies are incorporated under license from
SRS Labs, Inc.