PURPOSE: To provide a press-to-talk button where physical relationship between a lever and a tact switch has flexibility, and one actuator carries out conventional functions.

CONSTITUTION: A blade spring is bent into an approximately U letter shape in its side view so as to form an actuator 3, one side of the actuator 3 is formed into a first spring portion 3a, and an engaging portion 3b is formed in the intermediate portion of the other side. A portion ahead of the engaging portion 3b is formed into a second spring portion 3c, and the actuator 3 is fitted to an outer casing body 1 using the engaging portion 3b. The first spring portion 3a touches the inner face portion of a lever 2, fitted to the outer casing body 1 to be rockable, so that the protruding portion 15 of the lever 2 is faced to the second spring portion 3c. The protruding portion 3d of the second spring portion 3c of the actuator 3 is faced to the operation portion 18a of the tact switch 18 provided in the outer casing body 1.