Switch device

Switch device (35) for use by an operator and connection to an actuator (18), for enabling the actuator to be driven when an ID code transmitted from a transponder (25) of a portable device (20) matches a predetermined ID code of a vehicle controller (10), the switch device comprising: an operation switch (30) operated by the operator for driving the actuator; and a decorative member (32) arranged to surround the operation switch; the switch device having communication means (17) arranged adjacent to the decorative member for transmitting a transponder-driving radio wave that causes the transponder to generate electromotive force used to transmit the ID code, wherein the decorative member is separable from the communication means to ensure formation of a magnetic path for the transponder-driving radio wave near the operation switch.