Limited Warranty and Service One-year Limited Warranty against defects in materials and workmanship. Review a copy of the Limited Warranty on new products, including its limitations and exclusions. All models also include 30 days of free Internet service through EarthLink. Internet access requires an Internet service account. In addition to choosing from Apple's preconfigured systems, you can order an iBook with factory-installed options such as additional RAM and AirPort wireless networking from your authorized Apple reseller or through the online Apple Store.
Battery life depends on configuration and use.
Some ISPs are not currently compatible with AirPort, including America Online. Range may vary with site conditions. Actual rates will vary. Customers buying new Macs after this date that do not yet have Mac OS X pre-installed can upgrade to Mac OS X for no charge. Options Visit the Apple Store online or at retail locations.