iOS is the operating system software installed on your iPhone. To find out which version you have: Tap Settings, Tap General, Tap About, and view the version number.
Want to pair your mobile phone with another Bluetooth device, such as a headset or a car kit? It's easy, but Bluetooth needs to be turned on on the other device before you can pair the devices.
Tap Settings.
Tap Bluetooth.
Tap the indicator next to Bluetooth to turn on the function.
Your mobile phone searches for devices and after a moment, a list of Bluetooth devices within range is displayed. Tap the required Bluetooth device. The new device is displayed on the list of paired devices.
