Bluetooth is a wireless connection which can be used to connect to other devices, such as a wireless headset or keypad.
Slide your finger downwards starting from the top of the screen.
Press the settings icon.
Press Connected devices.
Press the indicator to turn on the function.
Press Pair new device.
Press the required Bluetooth device and follow the instructions on the screen to pair the device with your phone.
Press the Home key to return to the home screen.