Apple Z0MF manual Last, but Not Least

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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.

58Chapter 4   Last, but Not Least

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Contents Page Welcome to your MacBook Air OS X Lion Page Contents Looking for Something? Ready, Set Up, Go Welcome Setting Up Your MacBook Air What’s in the BoxAC plug MagSafe connector ¯MagSafe power port AC power cord Press the power button briefly to turn on your MacBook Air Configure your MacBook Air with Setup Assistant To set up your MacBook AirReady, Set Up, Go Customize the Mac OS X desktop and set preferences Setting Up DVD or CD Sharing Getting Additional Information onto Your MacBook AirMacBook Air To enable DVD or CD Sharing, if your other computer is a PC Sharing Discs with DVD or CD SharingTo use a shared DVD or CD Putting Your MacBook Air to Sleep or Shutting It DownPutting Your MacBook Air to Sleep To put your MacBook Air to sleep, do one of the followingTo wake your MacBook Air Shutting Down Your MacBook AirTo shut down your MacBook Air, do one of the following Page Life with Your MacBook Air Basic Features of Your MacBook Air Built-in stereo speakers Keyboard Features of Your MacBook Air Brightness keys F1, F2 Ports on Your MacBook Air ¯ MagSafe power port Using the Multi-Touch Trackpad Secondary-click zone Life with Your MacBook Air Life with Your MacBook Air Running Your MacBook Air on Battery Power Charging the BatteryGetting Answers To get help from Help CenterMore Information SeeTo learn about See Page Problem, Meet Solution An Ounce of Prevention Problems That Prevent You from Using Your MacBook Air To force an application to quitIf your MacBook Air doesn’t turn on or start up Try restarting your MacBook Air Repairing, Restoring, or Reinstalling Mac OS X Software To connect by using a Wi-Fi network To open the Mac OS X Utilities applicationRepairing a Disk with Disk Utility Restoring Information Using a Time Machine BackupReinstalling Mac OS X and Apple Applications Restoring Your Computer to Its Factory SettingsChecking for a Hardware Problem To use Apple Hardware TestProblems with Your Internet Connection To use Network DiagnosticsProblems with Wi-Fi Communication To check for updated software Keeping Your Software Up to DateOnline Resources Onscreen Help Learning More, Service, and SupportAppleCare Service and Support System InformationCountry Phone Website Locating Your Product Serial Number Last, but Not Least Important Safety Information Last, but Not Least AC plug MagSafe power specifications Last, but Not Least Important Handling Information Last, but Not Least Understanding Ergonomics Keyboard and TrackpadExternal Mouse ChairApple and the Environment Built-In DisplayRegulatory Compliance Information Bluetooth Europe-EU Declaration of Conformity Japan Vcci Class B Statement Russia External USB Modem Information 020-5563-A Looking for Something? Index Looking for Something? Updating  Simultaneously published in the United States and Canada Page