User Manual
Table Of Contents
- Congratulations, you and your MacBookPro were made for each other.
- Contents
- 1 Ready, Set Up, Go
- 2 Life with Your MacBookPro
- 3 Boost Your MacBookPro
- 4 Problem, Meet Solution
- Problems That Prevent You from Using Your MacBookPro
- Using Apple Hardware Test
- Problems with Your Internet Connection
- Problems with AirPort Extreme Wireless Communication
- Keeping Your Software Up to Date
- Reinstalling the Software That Came with Your MacBookPro
- Learning More, Service, and Support
- Locating Your Product Serial Number
- 5 Last, but Not Least
- Regulatory Compliance Information
- Index
68 Chapter 5 Last, but Not Least
MagSafe power specifications:
 Frequency: 50 to 60 Hz, single phase
 Line Voltage: 100 to 240 V
 Output Voltage: 18.5 V DC, 4.6 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:
 Limit the amount of time you use earbuds or headphones at high volume.
 Avoid turning up the volume to block out noisy surroundings.
 Turn the volume down if you can’t hear people speaking near you.
High-risk activities This computer system 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 the failure of the computer system could lead to
death, personal injury, or severe environmental damage.