Kenwood DDX9020DABS Instruction Manual page 114

Appendix
■ The marking of products using lasers
(DDX9020DABS / DDX920WDABS /
DDX8020S / DDX820WS)
The label is attached to the chassis/case and says
that the component uses laser beams that have been
classified as Class 1. It means that the unit is utilizing
laser beams that are of a weaker class. There is no
danger of hazardous radiation outside the unit.
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