Optional AirPort wireless Internet and networking Using the optional AirPort Card, you can connect to the Internet, use email, share files, play network games, and more--without any wires to hold you down. Volume and brightness controls Adjust sound volume and screen brightness directly using your keyboard. Two built-in stereo speakers Listen to music, movies, games, and multimedia. Programmable function keys Set the keyboard function keys to open your Web browser, email application, or other favorite application or document automatically. Optical disc drive Install and run software, or listen to music CDs. Play DVD videos if you have the DVD or combo DVD/CD-RW drive, or create your own CDs if you have the CD-RW or combo drive. Press the eject key ( ) on the keyboard to open the drive. Battery level indicator (underneath) When you press the button on the battery, one to four lights glow to show how much charge is left. 2 FireWire Connect a digital video camera and use it to create your own desktop movies. You can also connect FireWire hard disks, printers, and more. Ethernet Share files with another computer or access a computer network...