BEIJING, June 19 (Xinhuanet) -- Apple Inc.said Monday its iPhone battery will last for eight hours of talk time, seven hours of video playback, six hours of Internet use, 24 hours of music playback and will pack up to 10 days of standby time before needing a recharge.

    That's one more hour of standby time than when Apple unveiled the handset in January.

    In another change, the iPhone's touch-sensitive screen will be made from optical-quality glass, instead of plastic. Apple CEO Steve Jobs said the change will create "superior scratch resistance and clarity."

    The combo cell phone, media player and wireless Web device will only be sold at stores owned by Apple Inc. and AT&T Inc., which has an exclusive deal to offer service for the device when it goes on sale in the United States on June 29. It will also be available at Apple's website.

    The iPhone will be available in two configurations, 500 U.S. dollars for a four gigabyte model and 600 U.S. dollars for one with eight gigabytes of storage.

    (Agencies)