Bluetooth headset

A Bluetooth headset comprising:

• a headset body, which is a casing having an earphone part;
• a function button embedded in a rear or lateral side of the headset body, which is used to operate a function of the Bluetooth headset, wherein in a storage space of the headset body, a circuit board is placed, the circuit board being designed for mounting an operating switch (such as an electric button switch) that operates by cooperation with the function button;
• and
• a position changing means for changing a position of the function button with respect to the operating switch according to an operation of the function button by a user, wherein the function button and the operating switch are aligned with or misaligned from each other by the position changing means, so that a pressing of the function button provides an operable unlocked state or a non-operable locked state where operation or non-operation of the operating switch is selectively carried out,
• wherein, in addition to a selecting function of the non-operable locked state or operable unlocked state, a power saving means for converting power of the Bluetooth headset into an OFF mode or a sleep mode is further provided.