The latest Raspberry Pi model -Raspberry Pi 3 now comes with inbuilt Wi-Fi and Bluetooth 4.1/Low Energy (LE) support, thanks to the BCM43438 chip.

To use the built-in Bluetooth of Raspberry Pi 3/Raspbian Jessie, we have to install some software. Ensuring that your Raspberry Pi 3 is connected to the internet via an Ethernet cable, open a new terminal and type the following:

$ sudo apt-get install pi-bluetooth
(it should be already installed in update Raspbian Jessie)
$ sudo apt-get install bluetooth bluez blueman

With all of the software now installed, go ahead and reboot your Raspberry Pi 3, as we are in the terminal use $ sudo reboot.Once your Raspberry Pi has rebooted you will return to the desktop. Now in the top-right corner you should see the Bluetooth logo. If not then go to the main menu, in the top left of the screen, click on Preferences > Bluetooth Manager. The icon should now appear in the top right of the screen.