Eclipse ESN E3 High-Power CD Receiver with CDC/E-COM/DSP Control and Wireless Remote Model: 54420 Owner's Manual page 4

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Do not stick your fingers or hands into the disc slot. Doing so
may cause personal injury.
•
This product must be operated only as on-board equipment,
or it may cause electrical shock or injury.
•
Do not play distorted sounds for long periods of time;
the speakers may overheat and cause a fire.
•
This product uses an invisible laser light. In case a problem
develops, be sure to consult the dealer from whom you
purchased the product. Do not disassemble or rebuild the
unit; rebuilding it may expose you and others to a dangerous
laser emission (which would damage eyesight) or cause an
accident.
•
Never use batteries other than those specified. Do not mix
new and old cells. Doing so may cause a fire or personal injury
due to a battery explosion or chemical leaks.
•
Pay attention to the (+) and (-) polarity of the battery when
installing it in the product. Incorrect installation may cause
personal injury or product damage due to a battery explosion
or chemical leakage.
4
Caution