PURPOSE: To turn on a switch by pushing a touch panel to start the operation in a remote device which is provided with a switch in the two-stage structure with an operation key using the touch panel.

CONSTITUTION: A switch 4 having the two-stage structure with a touch panel 3 is provided under the touch panel 3 in an operation key 2, and a port 5 which permits an interrupt from the switch 4 to a CPU circuit 6 is provided, and the CPU circuit 6 is provided with a coordinate value detecting means 7 and a coordinate data transmission means 8. Therefore, the user can perform the smooth operation without searching other keys because of input operation only on the touch panel at the time of operation.