Acer Aspire E1-521 - Manual (Page 4)

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Do not overload a power outlet, strip or receptacle by plugging in too many
devices. The overall system load must not exceed 80% of the branch circuit
rating. If power strips are used, the load should not exceed 80% of the power
strip's input rating.
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This product's AC adapter is equipped with a three-wire grounded plug. The
plug only fits in a grounded power outlet. Make sure the power outlet is
properly grounded before inserting the AC adapter plug. Do not insert the plug
into a non-grounded power outlet. Contact your electrician for details.
Warning! The grounding pin is a safety feature. Using a power
outlet that is not properly grounded may result in electric shock
and/or injury.
Note: The grounding pin also provides good protection from
unexpected noise produced by other nearby electrical devices that
may interfere with the performance of this product.
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The system can be powered using a wide range of voltages; 100 to 120 or 220
to 240 V AC. The power cord included with the system meets the requirements
for use in the country/region where the system was purchased. Power cords
for use in other countries/regions must meet the requirements for that country/
region. For more information on power cord requirements, contact an
authorized reseller or service provider.
Protecting your hearing
Warning: Permanent hearing loss may occur if
earphones or headphones are used at high volume for
prolonged periods of time.
To protect your hearing, follow these instructions.
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Increase the volume gradually until you can hear clearly and comfortably.
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Do not increase the volume level after your ears have adjusted.
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Do not listen to music at high volumes for extended periods.
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Do not increase the volume to block out noisy surroundings.
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Decrease the volume if you can't hear people speaking near you.
Bundled dummy cards
Note: Information in this section may not apply to your computer.