A Bluetooth headset includes a case, a circuit board, a speaker, a USB plug, a memory slot, an actuating structure, and a movable lid. The case is a hollow structure. A containing space in the case is accessible to an opening of the case. The circuit board is installed in the containing space. The speaker is installed on the case and electrically connected to the circuit board. Both the USB plug and the memory slot are electrically connected to the circuit board. The actuating structure is disposed on the case for driving the circuit board to selectively move the USB plug and the memory slot toward or away from the opening of the case. The movable lid is disposed at a side of the opening of the case in a rotatable manner.