PURPOSE: To selectively control only the touch feeling of a pushed key in response to pushing the key by providing a key operation detecting means for detecting each key operation of plural keys and a touch control means to apply force upon the key so as to control the touch feeling of the key based on the output signal of the key operation detecting means.

CONSTITUTION: The position of the key 1 is detected by a position sensor 3, and the detection signal of the position sensor 3 is supplied to a threshold deciding part 11, and is compared with a threshold, and a monitor signal 15 is generated. This monitor signal 15 is supplied to the touch control part 12, and the touch control part 12 supplies a control signal for controlling the key 1 to a drive circuit 13. The drive circuit 13 supplies a desired control signal based on the control signal to a solenoid 7. Accordingly, unnecessary control for many non-pushed keys can be prevented, and power saving can be realized. Thus, the desired touch feeling control can be executed as preventing excessive current consumption.