The HiKey board includes built-in Bluetooth 4.0 LE support.
To setup a Bluetooth device open the Bluetooth Manager from the Preferences menu. If a “Bluetooth Turned Off” popup appears then select “Enable Bluetooth”. Click on "Search" to search for devices. Try with your bluetooth audio and bluetooth keyboard/mouse. If you make the device trusted then this device should also work over a reboot of the board.
The blue LED between the microUSB and the Type A USB on the front board edge indicates bluetooth activity.