Various embodiments relate to an electronic device including a button and a method for an operation in the electronic device. The electronic device may include: an elongated housing comprising a first end and a second end; a dielectric tip disposed at the first end; a button arranged on an outer surface of the housing; a first circuit connected to the dielectric tip and configured to receive a first electromagnetic signal from a touchscreen display of an external device and to transmit a second electromagnetic signal to the display of the external device; a second circuit configured to wirelessly receive and transmit a third signal; and a control circuit operatively connected to the first circuit and the second circuit. The control circuit may be configured to: detect pressing and/or touching of the button while the first electromagnetic signal is received through the first circuit and transmit the second electromagnetic signal while preventing the second circuit from transmitting the third signal; and detect pressing and/or touching of the button without receiving the first signal through the first circuit and transmit the third signal while the second signal is not transmitted.