MSI U270 User Manual page 33

2-11
+
Bluetooth
(optional)
+
3G
(not supported)
5. Internal Microphone
There is built-in microphone and its function is the same with microphone.
Press and hold the Fn button, and then press the F9 button to turn
the Bluetooth function on. Press again to turn it off.
This function is NOT supported on this model.