IPhone these profiles prevents iPhone users from exchanging multimedia files, such as pictures, music and videos, with other Bluetooth-enabled cell phones. Composite or component video at up to 576i and stereo audio can be output from the dock connector using an adapter sold by Apple. iPhone 4 also supports 1024×768 VGA output without audio, and HDMI output, with stereo audio, via dock adapters. The iPhone did not support voice recording until the 3.0 software update. The iPhone features an internal rechargeable lithium-ion battery. Like an iPod, but unlike most other mobile phones at the time of its launch, the battery is
Find My iPhone Find My iPhone allows users to locate their iOS devices using either the iOS app or icloud.com on a computer. In addition to locating a device, the service provides three key features: The update with iOS 6 added the ability to check the device's battery level. Since the release of iOS 7 users have complained about the link between GPS, WiFi, and the App itself. Some handset owners have noted the App enables and disables itself when passing between cellular protocol bandwidths. , the service is supported on iPhone, iPad, iPod Touch, and Mac computers running OS X 10.7.5 "Lion"