Apple M7710LL User Guide - Page 56

MagSafe power specifications, Hearing damage, High-risk activities, Frequency, Line Voltage

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MagSafe power specifications: ÂÂ Frequency: 50 to 60 Hz, single phase ÂÂ Line Voltage: 100 to 240 V ÂÂ Output Voltage: 16.5 V DC, 3.65 A Hearing damage Permanent hearing loss may occur if earbuds or headphones are used at high volume. You can adapt over time to a higher volume of sound that may sound normal but can be damaging to your hearing. If you experience ringing in your ears or muffled speech, stop listening and have your hearing checked. The louder the volume, the less time is required before your hearing could be affected. Hearing experts suggest that to protect your hearing: ÂÂ Limit the amount of time you use earbuds or headphones at high volume. ÂÂ Avoid turning up the volume to block out noisy surroundings. ÂÂ Turn the volume down if you can't hear people speaking near you. High-risk activities This computer is not intended for use in the operation of nuclear facilities, aircraft navigation or communications systems, air traffic control systems, or for any other uses where a failure of the computer system could lead to death, personal injury, or severe environmental damage. 56 Chapter 4 Last, but Not Least

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56
Chapter 4
Last, but Not Least
MagSafe power specifications:
Â
Frequency:
50 to 60 Hz, single phase
Â
Line Voltage:
100 to 240 V
Â
Output Voltage:
16.5 V DC, 3.65 A
Hearing damage
Permanent hearing loss may occur if earbuds or headphones are
used at high volume. You can adapt over time to a higher volume of sound that may
sound normal but can be damaging to your hearing. If you experience ringing in your
ears or muffled speech, stop listening and have your hearing checked. The louder the
volume, the less time is required before your hearing could be affected. Hearing experts
suggest that to protect your hearing:
Â
Limit the amount of time you use earbuds or headphones at high volume.
Â
Avoid turning up the volume to block out noisy surroundings.
Â
Turn the volume down if you can’t hear people speaking near you.
High-risk activities
This computer is not intended for use in the operation of nuclear
facilities, aircraft navigation or communications systems, air traffic control systems, or
for any other uses where a failure of the computer system could lead to death, personal
injury, or severe environmental damage.