http://www.usa.canon.com/cusa/support/consumer/projectors_visualizers/projectors/lv_8225?pageKeyCode=writeReviewPage
LV-8225
22132
Features
Quiet Operation and Closed Captioning
Quiet Operation
Give your audience the silent treatment with the quietness of the LV-8225. In Normal mode the projector runs at 36dB and that drops to 29dB in Quiet mode, allowing all ears to be on the presentation.

 Closed Captioning Closed Captioning
If you are presenting to a hearing impaired audience or in a venue with a high level of ambient noise, the LV-8225 can deliver closed captioning to make any difficult to understand dialogue perfectly clear.
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