A radio control transmitter capable of enhancing controllability of a remotely controlled unit, for example a model car includes a control unit having switches 8 for controlling the neutral positions of servos that operate based on control inputs of a throttle trigger 3 and a steering wheel 4, wherein the switches 8 are provided on a control unit 10 that rotatably supports the steering wheel 4, corresponding to a mount 2a of a main body. The control unit 10 is detachably installed corresponding to the mount 2a of the main body, while capable of being attached to a discretionary position in the direction of rotation. Accordingly, the position of the switches 8 can be adjusted to meet the needs of a user. Consequently, the user can operate the controlled unit with enhanced controllability.